Question

\(\dfrac{-3}{4}\) + \(\dfrac{2}{7}\) + \(\dfrac{-1}{4}\) +\(\dfrac{3}{5}\)  +\(\dfrac{5}{7}\)

Answer 1

\(-\dfrac{3}{4}+\dfrac{2}{7}+\dfrac{-1}{4}+\dfrac{3}{5}+\dfrac{5}{7}\)

\(=-\dfrac{3}{4}-\dfrac{1}{4}+\dfrac{2}{7}+\dfrac{5}{7}+\dfrac{3}{5}\)

\(=-\dfrac{4}{4}+\dfrac{7}{7}+\dfrac{3}{5}\)

\(=-1+1+\dfrac{3}{5}\)

\(=0+\dfrac{3}{5}\)

\(=\dfrac{3}{5}\)

Answer 2

`-3/4 + 2/7 + (-1)/4 + 3/5 + 5/7`

`=(-3/4 + (-1)/4 ) +(2/7 + 5/7) + 3/5`

`= -4/4 + 7/7 + 3/5`

`=-1+1+3/5`

`=0+3/5`

`=3/5`

Answer 3

\(\dfrac{-3}{4}+\dfrac{2}{7}+\dfrac{-1}{4}+\dfrac{3}{5}+\dfrac{5}{7}\)

\(=\left(\dfrac{-3}{4}+\dfrac{-1}{4}\right)+\left(\dfrac{2}{7}+\dfrac{5}{7}\right)+\dfrac{3}{5}\)

\(=\left(-1\right)+1+\dfrac{3}{5}\)

\(=0+\dfrac{3}{5}\)

\(=\dfrac{3}{5}\)