Answer
$7\frac{17}{24}$
Work Step by Step
Add fractions by converting to equivalent fractions using the least common multiple as the denominator.
$2\frac{1}{3}+5\frac{3}{8}=2\frac{1\times8}{3\times8}+5\frac{3\times3}{8\times3}=2\frac{8}{24}+5\frac{9}{24}=7\frac{17}{24}$