Answer
$\frac{1}{5}$
Work Step by Step
$1 - (\frac{3}{10} + \frac{5}{10})$ (Convert all numbers to have a denominator of 10)
$= \frac{10}{10} - (\frac{3}{10} + \frac{5}{10})$ (Add the fractions in the brackets)
$= \frac{10}{10} - \frac{8}{10}$ (Complete the subtraction)
$= \frac{2}{10} = \frac{1}{5}$
