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 \( \frac{7}{2} \) + \( \frac{9}{4} \)?
| 5\(\frac{3}{4}\) | |
| \( \frac{9}{17} \) | |
| 1 \( \frac{9}{4} \) | |
| \( \frac{8}{15} \) |