To simplify the expression, we can start by getting a common denominator for the two fractions in the numerator. The common denominator is xy. So, we can write:
\begin{align*}
\frac{\frac{1}{x} + \frac{1}{y}}{x + y} &= \frac{\frac{y}{xy} + \frac{x}{xy}}{x + y} \\
&= \frac{\frac{x + y}{xy}}{x + y} \\
&= \frac{1}{xy}
\end{align*}
Therefore, the simplified expression is \(\frac{1}{xy}\).