Question

7/15*4/5+7/15*1/5-7/15

Answer 1

\(\dfrac{7}{15}.\dfrac{4}{5}+\dfrac{7}{15}.\dfrac{1}{5}-\dfrac{7}{15}\)

\(=\dfrac{7}{15}.\left(\dfrac{4}{5}+\dfrac{1}{5}-1\right)\)

\(=\dfrac{7}{15}.0\)

\(=0\)

Answer 2

\(\dfrac{7}{15}\cdot\dfrac{4}{5}+\dfrac{7}{15}\cdot\dfrac{1}{5}-\dfrac{7}{15}\)

\(=\dfrac{7}{15}\cdot\left(\dfrac{4}{5}+\dfrac{1}{5}-1\right)\)

\(=\dfrac{7}{15}\cdot\left(1-1\right)\)

\(=\dfrac{7}{15}\cdot0\)

\(=0\)