\[\frac{6 + \sqrt{6}}{\sqrt{30} + \sqrt{5}} = \frac{\sqrt{6}\left( \sqrt{6} + 1 \right)}{\sqrt{6 \cdot 5} + \sqrt{5}} =\]
\[= \frac{\sqrt{6}\left( \sqrt{6} + 1 \right)}{\sqrt{5}\left( \sqrt{6} + 1 \right)} = \frac{\sqrt{6}}{\sqrt{5}} =\]
\[= \sqrt{\frac{6}{5}} = \sqrt{1,2}.\]