Question

-3/7 + 1/7 + 3/5 + -5/7

Answer 1

-3/7 + 1/7 + 3/5 + -5/7

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

Answer 2

-2/5