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 \( \frac{7}{8} \) + \( \frac{9}{10} \)?
| 2 \( \frac{1}{6} \) | |
| 2 \( \frac{6}{40} \) | |
| 2 \( \frac{2}{9} \) | |
| 1\(\frac{7}{9}\) |