\[\frac{a + b}{2a + 2\sqrt{\text{ab}}} + \frac{\sqrt{b}}{\sqrt{a} + \sqrt{b}} =\]
\[= \frac{a + b}{2\sqrt{a}\left( \sqrt{a} + \sqrt{b} \right)} + \frac{\sqrt{b}}{\sqrt{a} + \sqrt{b}} =\]
\[= \frac{a + b + 2\sqrt{a}\sqrt{b}}{2\sqrt{a}\left( \sqrt{a} + \sqrt{b} \right)} =\]
\[= \frac{\sqrt{a} + \sqrt{b}}{2\sqrt{a}}\]