Answer
$\frac{17}{40}$
Work Step by Step
1. Find LCD of fractions: 40
2. Write both fractions with denominators of 40:
$\frac{3}{8} * \frac{5}{5} = \frac{15}{40}$
$\frac{1}{20} * \frac{2}{2} = \frac{2}{40}$
3. Solve by adding numerators together:
$\frac{15}{40}$ + $\frac{2}{40}$ = $\frac{17}{40}$
