Question

2/5 x 8/14 + 9/14 x 7/5

Answer 1

\(\dfrac{2}{5} . \dfrac{8}{14}+\dfrac{9}{14} . \dfrac{7}{5}=\left(\dfrac{2}{5}+\dfrac{7}{5}\right) . \left(\dfrac{8}{14}+\dfrac{9}{14}\right)=\dfrac{9}{5} . \dfrac{17}{14}=\dfrac{153}{70}\)

Answer 2

`2/5 xx 8/14 + 9/14 xx 7/5`

`= 2/5 xx 4/7 + 63/70`

`=8/35 +63/70`

`= 16/70 + 63/70`

`= (16 + 63)/70`

`= 79/70`