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 \( \frac{3}{3} \) - \( \frac{3}{9} \)?
| \(\frac{2}{3}\) | |
| 1 \( \frac{7}{13} \) | |
| 2 \( \frac{3}{9} \) | |
| 1 \( \frac{5}{9} \) |