### Instruction: Find $\frac{9}{10}+\frac{5}{6}$. Express your answer as a fraction in simplest form.### Response: To add fractions, I need to have a common denominator.
The least common multiple of 10 and 6 is 30, so I can multiply the first fraction by $\frac{3}{3}$ and the second fraction by $\frac{5}{5}$ to get equivalent fractions with a denominator of 30.
This gives me $\frac{27}{30}+\frac{25}{30}$.
Now I can add the numerators and keep the denominator, so I have $\frac{27+25}{30}=\frac{52}{30}$.
I can simplify this fraction by dividing both the numerator and the denominator by their greatest common factor, which is 2.