Question

13 x 4/15 + 4 x 4/15 - 2 x 4/15

Answer 1

\(=\dfrac{4}{15}x\left(13+4-2\right)=\dfrac{4x15}{15}=4\)

Answer 2

`13xx4/5+4xx4/15-2xx4/15`

`=4/15xx(13+4-2)`

`=4/15xx15`

`=4`

Answer 3

\(13\times\dfrac{4}{15}+4\times\dfrac{4}{15}-2\times\dfrac{4}{15}\)
\(=\left(13+4-2\right)\times\dfrac{4}{15}\)
\(=15\times\dfrac{4}{15}\)
\(=4\)

Answer 4

ok