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132x45x8/25x16x99
=11x2x2x3x9x5x8/5x5x8x2x9x11
=\(\frac{6}{5}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{132x45x8}{25x16x99}\)= \(\frac{4x3x11x5x9x8}{5x5x4x4x9x11}\)= \(\frac{3x8}{5x4}\)= \(\frac{24}{20}\)= \(\frac{6}{5}\)
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\(\frac{28\times36}{27\times14}\)= \(\frac{14\times2\times9\times4}{9\times3\times14}\)= \(\frac{2\times4}{3}\)= \(\frac{8}{3}\).
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a) \(\frac{28.36}{27.14}=\frac{7.4.9.2.2}{3.9.7.2}=\frac{4.2}{3}=2\)
b) \(\frac{132.45.8}{25.16.99}=\frac{2.2.3.11..3.3.5.2.2.2}{5.5.2.2.2.2.3.3.11}=\frac{2.3}{5}=\frac{6}{5}\)
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a) 19,17x25x4=19,17(25x4)=19,17x100=1917
b)1,79x(8x125)=1,79x1000=1790
chúc bạn học tốt
![](https://rs.olm.vn/images/avt/0.png?1311)
Đề đọc khó hiểu quá bạn. Bạn nên viết lại để mọi người hỗ trợ tốt hơn.
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=21,37\cdot\left(27,5+72,4+0,1\right)=21,37\cdot100=2137\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=21,37\cdot27.5+72.4+21.37+21.37\cdot0.1\)
\(=21.37\left(27.5+72.4+0.1\right)=21.37\cdot100=2137\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=25,17\times\left(16,9-16,8\right)\\ =25,17\times1=25,17\)