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 \( \frac{7}{4} \) - \( \frac{9}{8} \)?
| \( \frac{1}{8} \) | |
| 2 \( \frac{3}{8} \) | |
| \(\frac{5}{8}\) | |
| \( \frac{9}{16} \) |