Fractions must share a common denominator in order to be added or subtracted. The common denominator is the least common multiple of all the denominators.
What is \( \frac{9}{6} \) + \( \frac{9}{10} \)?
| 2 \( \frac{6}{11} \) | |
| 2\(\frac{2}{5}\) | |
| 2 \( \frac{6}{30} \) | |
| 2 \( \frac{2}{9} \) |