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 \( \frac{5}{3} \) + \( \frac{2}{7} \)?
| 1 \( \frac{3}{21} \) | |
| 2 \( \frac{4}{10} \) | |
| 2 \( \frac{9}{17} \) | |
| 1\(\frac{20}{21}\) |