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 \( \frac{3}{9} \) - \( \frac{4}{15} \)?
| \( \frac{4}{12} \) | |
| \(\frac{1}{15}\) | |
| 1 \( \frac{8}{16} \) | |
| 2 \( \frac{5}{45} \) |