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 \( \frac{9}{5} \) - \( \frac{7}{7} \)?
| \( \frac{2}{35} \) | |
| 1 \( \frac{8}{15} \) | |
| 1 \( \frac{7}{10} \) | |
| \(\frac{4}{5}\) |