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 \( \frac{6}{9} \) + \( \frac{6}{15} \)?
| 1\(\frac{1}{15}\) | |
| \( \frac{1}{8} \) | |
| 2 \( \frac{4}{7} \) | |
| 1 \( \frac{2}{7} \) |