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 \( \frac{7}{9} \) - \( \frac{3}{15} \)?
| \(\frac{26}{45}\) | |
| 1 \( \frac{2}{7} \) | |
| 1 \( \frac{6}{15} \) | |
| 1 \( \frac{7}{45} \) |