#### Answer

$\frac{1}{5}$

#### Work Step by Step

1. Find LCD of fractions: 15
2. Write fractions with LCD as denominator:
$\frac{8}{15}$
$\frac{1}{3} * \frac{5}{5} = \frac{5}{15}$
3. Subtract numerators and keep common denominator of fractions:
$\frac{8}{15} - \frac{5}{15} = \frac{3}{15} = \frac{1}{5}$