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 \( \frac{2}{6} \) - \( \frac{6}{14} \)?
| 1 \( \frac{4}{7} \) | |
| 1 \( \frac{1}{42} \) | |
| 2 \( \frac{7}{14} \) | |
| -\(\frac{2}{21}\) |