Answer
$\frac{\sqrt {19}}{5}$.
Work Step by Step
When taking a square root of a fraction, we take the square root of the numerator (top of the fraction) and denominator (bottom of the fraction) separately. The square root of 25 is 5, and there is no way to reduce the square root of 19, giving us an answer of $\frac{\sqrt {19}}{5}$.
