TRẦN MINH TƯỜNG: C6

Giải bài 1 trang 47 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;">Đề bàiViết các phân số thập phân sau đây dưới dạng số thập phân:<mfrac><mrow class="MJX-TeXAtom-ORD"><mn>24</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mo>&#x2212;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>27</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>10</mn></mrow></mfrac><mo>;</mo><mo>&#x2212;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>45</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mn>9</mn><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>;</mo><mo>&#x2212;</mo><mfrac><mn>7</mn><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>.</mo></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">24<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.7em;">100;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−27<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.2em;">10;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−45<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.7em;">100;9<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.2em;">1000;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−7<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.2em;">1000<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.324em; white-space: pre;">.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>24</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mo>−</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>27</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>10</mn></mrow></mfrac><mo>;</mo><mo>−</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>45</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mn>9</mn><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>;</mo><mo>−</mo><mfrac><mn>7</mn><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>.</mo></math><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;">Phương pháp giải - Xem chi tiết<img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;">Phần nguyên viết bên trái dấu phẩy.Phần thập phân viết bên phải dấu phẩy.</div></div>Lời giải chi tiếtĐổi lần lượt các phân số thập phân trên ra số thập phân, ta được:<mn>0</mn><mo>,</mo><mn>24</mn><mo>;</mo><mo>&#x2212;</mo><mn>2</mn><mo>,</mo><mn>7</mn><mo>;</mo><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>45</mn><mo>;</mo><mn>0</mn><mo>,</mo><mn>009</mn><mo>;</mo><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>007</mn></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,24;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−2<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,7;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,45;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,009;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,007<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0</mn><mo>,</mo><mn>24</mn><mo>;</mo><mo>−</mo><mn>2</mn><mo>,</mo><mn>7</mn><mo>;</mo><mo>−</mo><mn>0</mn><mo>,</mo><mn>45</mn><mo>;</mo><mn>0</mn><mo>,</mo><mn>009</mn><mo>;</mo><mo>−</mo><mn>0</mn><mo>,</mo><mn>007</mn></math>;</div></div>Giải bài 2 trang 47 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;">Đề bàiViết các số thập phân sau đây dưới dạng phân số thập phân:<mn>0</mn><mo>,</mo><mn>15</mn><mo>;</mo><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>005</mn><mo>;</mo><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>04</mn><mo>;</mo><mn>0</mn><mo>,</mo><mn>008</mn><mo>;</mo><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>4.</mn></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,15;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,005;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,04;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,008;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,4.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0</mn><mo>,</mo><mn>15</mn><mo>;</mo><mo>−</mo><mn>0</mn><mo>,</mo><mn>005</mn><mo>;</mo><mo>−</mo><mn>0</mn><mo>,</mo><mn>04</mn><mo>;</mo><mn>0</mn><mo>,</mo><mn>008</mn><mo>;</mo><mo>−</mo><mn>0</mn><mo>,</mo><mn>4.</mn></math><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;">Phương pháp giải - Xem chi tiết<img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;">Phần nguyên viết bên trái dấu phẩy.Phần thập phân viết bên phải dấu phẩy.</div></div>Lời giải chi tiếtĐổi lần lượt các phân số thập phân trên ra số thập phân, ta được:<mfrac><mrow class="MJX-TeXAtom-ORD"><mn>15</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mo>&#x2212;</mo><mfrac><mn>5</mn><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>;</mo><mo>&#x2212;</mo><mfrac><mn>4</mn><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mn>8</mn><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>;</mo><mo>&#x2212;</mo><mfrac><mn>4</mn><mrow class="MJX-TeXAtom-ORD"><mn>10</mn></mrow></mfrac><mo>.</mo></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">15<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.7em;">100;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−5<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.2em;">1000;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−4<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.7em;">100;8<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.2em;">1000;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−4<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.2em;">10<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.324em; white-space: pre;">.</div></div>Giải bài 3 trang 48 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;">Đề bàiTìm số đối của các số thập phân sau:<mo>&#x2212;</mo><mn>18</mn><mo>,</mo><mn>5</mn><mo>;</mo><mspace width="thickmathspace" /><mn>12</mn><mo>,</mo><mn>54</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>08</mn><mo>;</mo><mspace width="thickmathspace" /><mn>245</mn><mo>,</mo><mn>33.</mn></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−18<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,5;12<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,54;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,08;245<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,33.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>−</mo><mn>18</mn><mo>,</mo><mn>5</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mn>12</mn><mo>,</mo><mn>54</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mo>−</mo><mn>0</mn><mo>,</mo><mn>08</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mn>245</mn><mo>,</mo><mn>33.</mn></math><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;">Phương pháp giải - Xem chi tiết<img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;">Đổi dấu số thập phân ta được số đối của nó.</div></div>Lời giải chi tiếtSố đối của các số thập phân đó là:<mn>18</mn><mo>,</mo><mn>5</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>12</mn><mo>,</mo><mn>54</mn><mo>;</mo><mspace width="thickmathspace" /><mn>0</mn><mo>,</mo><mn>08</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>245</mn><mo>,</mo><mn>33.</mn></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">18<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,5;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−12<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,54;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,08;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−245<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,33.</div></div>Giải bài 4 trang 48 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;">Đề bàiHãy sắp xếp các số thập phân sau theo thứ tự tăng dần.<mn>12</mn><mo>,</mo><mn>79</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>25</mn><mo>,</mo><mn>9</mn><mo>;</mo><mspace width="thickmathspace" /><mn>0</mn><mo>,</mo><mn>12</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>16</mn><mo>,</mo><mn>23</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>41</mn><mo>;</mo><mspace width="thickmathspace" /><mn>5</mn><mo>,</mo><mn>17.</mn></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">12<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,79;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−25<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,9;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,12;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−16<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,23;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,41;5<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,17.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>12</mn><mo>,</mo><mn>79</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mo>−</mo><mn>25</mn><mo>,</mo><mn>9</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mn>0</mn><mo>,</mo><mn>12</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mo>−</mo><mn>16</mn><mo>,</mo><mn>23</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mo>−</mo><mn>0</mn><mo>,</mo><mn>41</mn><mo>;</mo><mspace width="thickmathspace"></mspace><mn>5</mn><mo>,</mo><mn>17.</mn></math><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;">Phương pháp giải - Xem chi tiết<img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;">Bước 1: chia thành 2 nhóm số thập dương và số thập phân âm, vì số thập dương luôn lớn hơn số thập phân âm.Bước 2: Trong cùng các số thập phân dương, ta so sánh phần nguyên, số nào có phần nguyên lớn hơn thì lớn hơn. Để so sánh các số thập phân âm, ta so sánh số đối của chúng, số nào có số đối lớn hơn thì nhỏ hơn.</div></div>Lời giải chi tiếtTa có:<mn>0</mn><mo>&lt;</mo><mspace width="thickmathspace" /><mn>0</mn><mo>,</mo><mn>12</mn><mo>&lt;</mo><mspace width="thickmathspace" /><mn>5</mn><mo>,</mo><mn>17</mn><mo>&lt;</mo><mspace width="thickmathspace" /><mn>12</mn><mo>,</mo><mn>79</mn></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0">0<0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,12<5<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,17<12<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,79<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0</mn><mo><</mo><mspace width="thickmathspace"></mspace><mn>0</mn><mo>,</mo><mn>12</mn><mo><</mo><mspace width="thickmathspace"></mspace><mn>5</mn><mo>,</mo><mn>17</mn><mo><</mo><mspace width="thickmathspace"></mspace><mn>12</mn><mo>,</mo><mn>79</mn></math> và <mo>&#x2212;</mo><mn>25</mn><mo>,</mo><mn>9</mn><mo>&lt;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>16</mn><mo>,</mo><mn>23</mn><mo>&lt;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>41</mn><mo>&lt;</mo><mn>0</mn></math>" id="MathJax-Element-3-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−25<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,9<<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−16<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,23<<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,41<0<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>−</mo><mn>25</mn><mo>,</mo><mn>9</mn><mo><</mo><mspace width="thickmathspace"></mspace><mo>−</mo><mn>16</mn><mo>,</mo><mn>23</mn><mo><</mo><mspace width="thickmathspace"></mspace><mo>−</mo><mn>0</mn><mo>,</mo><mn>41</mn><mo><</mo><mn>0</mn></math>Nên ta sắp xếp các số thập phân sau theo thứ tự tăng dần như sau:<mo>&#x2212;</mo><mn>25</mn><mo>,</mo><mn>9</mn><mo>;</mo><mo>&#x2212;</mo><mn>16</mn><mo>,</mo><mn>23</mn><mo>;</mo><mspace width="thickmathspace" /><mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>41</mn><mo>;</mo><mspace width="thickmathspace" /><mspace width="thickmathspace" /><mn>0</mn><mo>,</mo><mn>12</mn><mo>;</mo><mspace width="thickmathspace" /><mspace width="thickmathspace" /><mn>5</mn><mo>,</mo><mn>17</mn><mo>;</mo><mspace width="thickmathspace" /><mn>12</mn><mo>,</mo><mn>79.</mn></math>" id="MathJax-Element-4-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−25<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,9;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−16<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,23;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,41;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,12;5<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,17;12<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,79.</div></div>Giải bài 5 trang 48 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;">Đề bàiViết các số thập phân sau dưới dạng số thập phân tối giản:<mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>45</mn><mo>;</mo><mn>0</mn><mo>,</mo><mn>125</mn><mo>;</mo><mo>&#x2212;</mo><mn>4</mn><mo>,</mo><mn>25</mn><mo>;</mo><mo>&#x2212;</mo><mn>8</mn><mo>,</mo><mn>24.</mn></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,45;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,125;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−4<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,25;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−8<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,24.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>−</mo><mn>0</mn><mo>,</mo><mn>45</mn><mo>;</mo><mn>0</mn><mo>,</mo><mn>125</mn><mo>;</mo><mo>−</mo><mn>4</mn><mo>,</mo><mn>25</mn><mo>;</mo><mo>−</mo><mn>8</mn><mo>,</mo><mn>24.</mn></math><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;">Phương pháp giải - Xem chi tiết<img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;">Bước 1: Đổi các số thập phân về dạng phân số thập phânBước 2: Rút gọn nếu có thể.</div></div>Lời giải chi tiếtĐổi lần lượt các số thập phân trên thành phân số, ta được:<mo>&#x2212;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>45</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>125</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>425</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>824</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>.</mo></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−45<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.7em;">100;125<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.2em;">1000;<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.369em; width: 2.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−425<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.478em;">100;<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.369em; width: 2.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−824<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.478em;">100<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.324em; white-space: pre;">.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>−</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>45</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>125</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>425</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>824</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>.</mo></math>Rút gọn từng phân số ta được:<mo>&#x2212;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>45</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>9</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>20</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>125</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>=</mo><mfrac><mn>1</mn><mn>8</mn></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>425</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>17</mn></mrow><mn>4</mn></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>824</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>206</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>25</mn></mrow></mfrac><mo>.</mo></math>" id="MathJax-Element-3-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−45<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.7em;">100<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.358em; width: 1.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−9<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.478em;">20;125<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.2em;">1000<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=1<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 0.7em;">8;<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.369em; width: 2.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−425<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.478em;">100<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.368em; width: 1.978em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−17<span class="mjx-denominator" style="bottom: -0.58em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.978em;">4;<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.369em; width: 2.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−824<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.478em;">100<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.358em; width: 2.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−206<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.478em;">25<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.324em; white-space: pre;">.<span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>−</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>45</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>9</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>20</mn></mrow></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mn>125</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>1000</mn></mrow></mfrac><mo>=</mo><mfrac><mn>1</mn><mn>8</mn></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>425</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>17</mn></mrow><mn>4</mn></mfrac><mo>;</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>824</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>100</mn></mrow></mfrac><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>−</mo><mn>206</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>25</mn></mrow></mfrac><mo>.</mo></math>Vậy <mo>&#x2212;</mo><mn>0</mn><mo>,</mo><mn>45</mn><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>9</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>20</mn></mrow></mfrac><mo>;</mo><mn>0</mn><mo>,</mo><mn>125</mn><mo>=</mo><mfrac><mn>1</mn><mn>8</mn></mfrac><mo>;</mo><mo>&#x2212;</mo><mn>4</mn><mo>,</mo><mn>25</mn><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>17</mn></mrow><mn>4</mn></mfrac><mo>;</mo><mo>&#x2212;</mo><mn>8</mn><mo>,</mo><mn>24</mn><mo>=</mo><mfrac><mrow class="MJX-TeXAtom-ORD"><mo>&#x2212;</mo><mn>206</mn></mrow><mrow class="MJX-TeXAtom-ORD"><mn>25</mn></mrow></mfrac><mo>.</mo></math>" id="MathJax-Element-4-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,45<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.358em; width: 1.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−9<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.478em;">20;0<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,125<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=1<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 0.7em;">8;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−4<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,25<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.368em; width: 1.978em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−17<span class="mjx-denominator" style="bottom: -0.58em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 1.978em;">4;<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−8<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,24<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.094em 0px 0.324em; white-space: pre;">=<span class="mjx-numerator" style="box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; top: -1.358em; width: 2.478em;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.278em 0px 0.416em; white-space: pre;">−206<span class="mjx-denominator" style="bottom: -0.591em; box-sizing: content-box !important; display: block; font-size: 15.3985px; margin: 0px; padding: 0px; position: absolute; text-align: center; width: 2.478em;">25<span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.324em; white-space: pre;">.</div></div>

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