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 \( \frac{3}{6} \) - \( \frac{7}{8} \)?
| 1 \( \frac{2}{7} \) | |
| 2 \( \frac{1}{5} \) | |
| \( \frac{6}{12} \) | |
| -\(\frac{3}{8}\) |