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 \( \frac{2}{3} \) + \( \frac{8}{7} \)?
| 2 \( \frac{4}{11} \) | |
| 1\(\frac{17}{21}\) | |
| \( \frac{5}{9} \) | |
| 2 \( \frac{9}{13} \) |