Answer
$\frac{\sqrt[4]{10}}{3}$
Work Step by Step
The given expression is
$=\sqrt[4]{\frac{10}{81}}$
Use $81=3^4$.
$=\sqrt[4]{\frac{10}{3^4}}$
Use quotient property of roots.
$=\frac{\sqrt[4]{10}}{\sqrt[4]{3^4}}$
Simplify.
$=\frac{\sqrt[4]{10}}{3}$