(9/5-2.18):(3/4/5+0,2)
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\(\left(\dfrac{9}{25}-2.18\right):\left(3\dfrac{4}{5}+0,2\right)=\left(\dfrac{9}{25}-36\right):\left(\dfrac{19}{5}+0,2\right)=-\dfrac{891}{25}:4=-\dfrac{891}{100}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
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\(\left(\frac{9}{15}-2,18\right):\left(3\frac{4}{5}+0,2\right)=\left(0,6-2,18\right):\left(3,8+0,2\right)=-1,58:4=-0,395\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(\frac{9}{25}-2\cdot18\right):\left(3\frac{4}{5}+0,2\right)\)
\(< =>\left(\frac{9}{25}-36\right):\left(\frac{19}{5}+\frac{1}{5}\right)\)
\(< =>\frac{-891}{25}:4\)
\(< =>\frac{-891}{100}\)
\(x^2=16\)
\(< =>4^2=16\)
mk chuc ban hoc tot nhe :))
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(\dfrac{9}{25}-2.18\right):\left(3\dfrac{4}{5}+0,2\right)\)
=\(\left(\dfrac{9}{25}-36\right):4\)
= -35,64:4=-8,91
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(=-\frac{91}{50}:4\)
\(=-\frac{91}{200}\)
b) \(=\frac{5}{18}-\frac{26}{5}+\frac{18}{5}\)
\(=-\frac{119}{90}\)
\(\left(\frac{9}{25}-2,18\right):\left(3\frac{4}{5}+0,2\right)\)
\(=\left(-1,82\right):4\)
\(=-0,455\)
\(\left(\dfrac{9}{5}-2.18\right):\left(3\dfrac{4}{5}+0,2\right)=\left(\dfrac{9}{5}-36\right):\left(3,8+0,2\right)\)
\(=\dfrac{-171}{5}:4=\dfrac{-171}{20}\)
Ý bạn là \(\dfrac{3}{\dfrac{4}{5}}hay\dfrac{\dfrac{3}{4}}{5}?\)