`4:6/5`
`=4xx5/6`
`=(4xx5)/(1xx6)`
`=20/6`
`=(20:2)/(6:2)`
`=10/3`
Đáp án trên là đúng.
\(4:\dfrac{6}{5}=4\times\dfrac{5}{6}=\dfrac{4\times5}{6}=\dfrac{20}{6}=\dfrac{20:2}{6:2}=\dfrac{10}{3}\)
\(4:\dfrac{6}{5}\\ =\dfrac{4}{1}:\dfrac{6}{5}\\ =\dfrac{4}{1}\times\dfrac{5}{6}\\ =\dfrac{20}{6}=\dfrac{10}{3}.\)
đúng vì
\(4:\dfrac{6}{5}=\dfrac{4}{1}:\dfrac{6}{5}=\dfrac{4}{1}X\dfrac{5}{6}=\dfrac{4X5}{1X6}=\dfrac{20}{6}=\dfrac{10}{3}\)
\(4:\dfrac{6}{5}\)
=\(4\) x \(\dfrac{5}{6}\)
=\(\dfrac{20}{26}=\dfrac{10}{3}\)
