# How do you rationalize the denominator and simplify (sqrt 5 + sqrt 6 ) / 3?

The denominator of $\frac{\sqrt{5} + \sqrt{6}}{\textcolor{b l u e}{3}}$ is $\textcolor{b l u e}{3}$ which is already a rational;
You could rewrite the given expression as $\frac{\sqrt{5}}{3} + \frac{\sqrt{6}}{3}$ if you felt this was "simpler";