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 \( \frac{9}{4} \) + \( \frac{4}{8} \)?
| \( \frac{7}{15} \) | |
| 2 \( \frac{5}{13} \) | |
| \( \frac{4}{8} \) | |
| 2\(\frac{3}{4}\) |