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 \( \frac{4}{2} \) + \( \frac{2}{10} \)?
| \( \frac{4}{7} \) | |
| \( \frac{1}{10} \) | |
| 2 \( \frac{8}{10} \) | |
| 2\(\frac{1}{5}\) |