Answer
$\frac{\sqrt{21}}{3}$
Work Step by Step
$\sqrt{\frac{7}{3}}$
Use the quotient rule for square roots.
$\frac{\sqrt7}{\sqrt{3}}$
Rationalize the denominator,
$\frac{\sqrt7}{\sqrt{3}}\times\frac{\sqrt{3}}{\sqrt{3}}$
Simplify.
$\frac{\sqrt7\times\sqrt{3}}{3}$
Use the product rule for square roots.
$\frac{\sqrt{21}}{3}$