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 \( \frac{7}{2} \) - \( \frac{5}{10} \)?
| 2 \( \frac{2}{10} \) | |
| 3 | |
| 1 \( \frac{4}{7} \) | |
| 1 \( \frac{9}{10} \) |