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 \( \frac{2}{5} \) + \( \frac{6}{9} \)?
| \( \frac{3}{7} \) | |
| \( \frac{7}{45} \) | |
| 1 \( \frac{2}{45} \) | |
| 1\(\frac{1}{15}\) |