#### Answer

$\dfrac{2\sqrt{xy}}{xy}$

#### Work Step by Step

Using the properties of radicals, the given expression, $
\dfrac{2}{\sqrt{xy}}
,$ simplifies to
\begin{array}{l}\require{cancel}
\dfrac{2}{\sqrt{xy}}\cdot\dfrac{\sqrt{xy}}{\sqrt{xy}}
\\\\=
\dfrac{2\sqrt{xy}}{xy}
.\end{array}
Note that all variables are assumed to represent positive real numbers.