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 \( \frac{8}{4} \) - \( \frac{9}{8} \)?
| 2 \( \frac{2}{8} \) | |
| 1 \( \frac{9}{16} \) | |
| \(\frac{7}{8}\) | |
| 1 \( \frac{3}{10} \) |