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 \( \frac{2}{5} \) - \( \frac{8}{9} \)?
| \( \frac{6}{14} \) | |
| 2 \( \frac{9}{18} \) | |
| 2 \( \frac{7}{15} \) | |
| -\(\frac{22}{45}\) |