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