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 \( \frac{2}{5} \) + \( \frac{4}{9} \)?
| 2 \( \frac{4}{45} \) | |
| \(\frac{38}{45}\) | |
| \( \frac{9}{45} \) | |
| \( \frac{1}{45} \) |