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 \( \frac{9}{5} \) - \( \frac{5}{7} \)?
| 1 \( \frac{3}{7} \) | |
| 1\(\frac{3}{35}\) | |
| \( \frac{5}{13} \) | |
| \( \frac{3}{9} \) |