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 \( \frac{6}{2} \) + \( \frac{9}{10} \)?
| 2 \( \frac{2}{5} \) | |
| 3\(\frac{9}{10}\) | |
| 1 \( \frac{7}{15} \) | |
| 2 \( \frac{1}{8} \) |