Question

( 3/4 . x ) : 1/2 = 4/5

các bạn giúp mik với mik đag cần gấp lắm ạ . Cảm ơn 

Answer 1

`(3/4.x):1/2=4/5`

`3/4x = 4/5 . 1/2`

`3/4x = 2/5`

`x=2/5:3/4`

`x=2/5 . 4/3`

`x=8/15`

Answer 2

\(\dfrac{3}{4}x=\dfrac{4}{5}.\dfrac{1}{2}\\ \dfrac{3}{4}x=\dfrac{2}{5}\\ x=\dfrac{2}{5}:\dfrac{3}{4}\\ x=\dfrac{8}{15}\)

Answer 3

\(\dfrac{3}{4}x:\dfrac{1}{2}=\dfrac{4}{5}\)

\(\Rightarrow\dfrac{3}{4}x=\dfrac{4}{5}.\dfrac{1}{2}\)

\(\Rightarrow\dfrac{3}{4}x=\dfrac{4}{10}\)

\(\Rightarrow x=\dfrac{4}{10}:\dfrac{3}{4}\)

\(\Rightarrow x=\dfrac{8}{15}\)

Answer 4

\(\left(\dfrac{3}{4}\cdot x\right):\dfrac{1}{2}=\dfrac{4}{5}\)

\(\dfrac{3}{4}\cdot x=\dfrac{4}{5}\cdot\dfrac{1}{2}\)

\(\dfrac{3}{4}\cdot x=\dfrac{2}{5}\)

\(x=\dfrac{2}{5}:\dfrac{3}{4}\)

\(x=\dfrac{8}{15}\)