Answer
$\frac{3\sqrt {a}}{a}$
Work Step by Step
The given expression is
$=\frac{3}{\sqrt{a}}$
Multiply by $\frac{\sqrt {a}}{\sqrt {a}}$.
$=\frac{3}{\sqrt{a}}\cdot \frac{\sqrt {a}}{\sqrt {a}}$
Use product property of square roots.
$=\frac{3\sqrt {a}}{\sqrt {a\cdot a}}$
Simplify.
$=\frac{3\sqrt {a}}{\sqrt {a^2}}$
$=\frac{3\sqrt {a}}{a}$
