Question

the sum of two numbers is 6/5 if one of them is 1/5 find (a) the sum of two numbers,(b) their
difference

Answer 1

sum is
$\frac{6}{5} + \frac{1}{5} = \frac{7}{5} = 1 \times \frac{2}{5}$
difference is
$\frac{6}{5} - \frac{1}{5} = 1$