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