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