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 \( \frac{3}{5} \) - \( \frac{9}{7} \)?
| \( \frac{1}{7} \) | |
| 1 \( \frac{7}{35} \) | |
| -\(\frac{24}{35}\) | |
| \( \frac{4}{9} \) |