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 \( \frac{7}{8} \) - \( \frac{9}{12} \)?
| \(\frac{1}{8}\) | |
| 2 \( \frac{2}{24} \) | |
| 1 \( \frac{1}{24} \) | |
| 1 \( \frac{3}{7} \) |