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