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