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 \( \frac{8}{2} \) - \( \frac{9}{4} \)?
| 1 \( \frac{3}{8} \) | |
| 1 \( \frac{5}{14} \) | |
| 1\(\frac{3}{4}\) | |
| 1 \( \frac{6}{9} \) |