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 \( \frac{3}{8} \) - \( \frac{9}{12} \)?
| \( \frac{3}{10} \) | |
| -\(\frac{3}{8}\) | |
| \( \frac{8}{24} \) | |
| \( \frac{1}{24} \) |