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 \( \frac{8}{8} \) - \( \frac{2}{10} \)?
| 1 \( \frac{4}{40} \) | |
| 1 \( \frac{3}{8} \) | |
| 2 \( \frac{1}{5} \) | |
| \(\frac{4}{5}\) |