Answer
$-\frac{\sqrt[3]{5}}{8}$
Work Step by Step
Apply the rule: $\sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}$
$-\sqrt[3]{\frac{5}{8}}=-\frac{\sqrt[3]{5}}{\sqrt[3]{8}}$
Evaluate and simplify.
$-\sqrt[3]{\frac{5}{8}}=-\frac{\sqrt[3]{5}}{8}$