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 \( \frac{3}{4} \) + \( \frac{4}{10} \)?
| 1 \( \frac{4}{9} \) | |
| 1 \( \frac{9}{13} \) | |
| 1\(\frac{3}{20}\) | |
| 1 \( \frac{6}{13} \) |