Question

1/5 +1/5
1/8 +1/8+1/8
2/5+1/5

Answer 1

\[\left\{\frac{2}{5},\frac{3}{8},\frac{3}{5}\right\} \]

Answer 2

Addition of fractions.
Note that each expression have common denominators,........so all we have to do is combine the numerators.
1/5 + 1/5 = 2/5
3/8
3/5
That is all there is to it.