Question

\(\dfrac{2}{5}\) x 5 + 4 x \(\dfrac{2}{5}\) + \(\dfrac{2}{5}\)

Answer 1

\(=2+\dfrac{8}{5}+\dfrac{2}{5}\)

\(=2+2=4\)

Answer 2

`=2/5xx5+4xx2/5+2/5xx1`

`=2/5xx(5+4+1)`

`=2/5xx10=4`

Answer 3

\(\dfrac{2}{5}\times5+4\times\dfrac{2}{5}+\dfrac{2}{5}\)

\(=\dfrac{2}{5}\times\left(5+4+1\right)\)

\(=\dfrac{2}{5}\times10\)

\(=4\)