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 \( \frac{2}{2} \) - \( \frac{8}{4} \)?
| \( \frac{7}{4} \) | |
| 1 \( \frac{1}{4} \) | |
| -1 | |
| 2 \( \frac{8}{12} \) |