Further practice simplifying a square root fraction by reducing it to a perfect square fraction before evaluating. For example, to simplify $\sqrt{\frac{98}{162}}$:

Simplify inside the radical by identifying common factors: $\sqrt{\frac{2 \cdot 49}{2 \cdot 81}}$.

Cancel the common factor of $2$: $\sqrt{\frac{49}{81}}$.

Because $\left(\frac{7}{9}\right)^2 = \frac{49}{81}$, the evaluated root is $\frac{7}{9}$.