To solve \( \frac{5}{6} + \frac{4}{6} \), you simply add the numerators because the denominators are the same:
\[ \frac{5 + 4}{6} = \frac{9}{6} \]
Next, you can simplify \( \frac{9}{6} \):
\[ \frac{9}{6} = \frac{3}{2} \]
So, \( \frac{5}{6} + \frac{4}{6} = \frac{3}{2} \).