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 \( \frac{3}{4} \) - \( \frac{9}{8} \)?
| 1 \( \frac{4}{9} \) | |
| \( \frac{4}{8} \) | |
| -\(\frac{3}{8}\) | |
| 1 \( \frac{6}{8} \) |