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 \( \frac{2}{3} \) - \( \frac{3}{7} \)?
| 2 \( \frac{5}{11} \) | |
| 2 \( \frac{4}{13} \) | |
| \(\frac{5}{21}\) | |
| 1 \( \frac{3}{9} \) |