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 \( \frac{7}{5} \) + \( \frac{5}{9} \)?
| \( \frac{2}{45} \) | |
| 1\(\frac{43}{45}\) | |
| \( \frac{7}{13} \) | |
| 2 \( \frac{8}{11} \) |