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 \( \frac{7}{4} \) - \( \frac{2}{10} \)?
| 1 \( \frac{4}{20} \) | |
| 1\(\frac{5}{9}\) | |
| 1 \( \frac{1}{9} \) | |
| 2 \( \frac{3}{20} \) |