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 \( \frac{2}{9} \) - \( \frac{9}{15} \)?
| -\(\frac{17}{45}\) | |
| 1 \( \frac{8}{45} \) | |
| 2 \( \frac{9}{12} \) | |
| \( \frac{7}{45} \) |