To add or subtract expressions, expand them to make their denominators the same. Least common multiple of $2$ and $3$ is $6$. Multiply $\frac{x}{2}$ times $\frac{3}{3}$. Multiply $\frac{x+2}{3}$ times $\frac{2}{2}$.
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of $6$ and $4$ is $12$. Multiply $\frac{5x+4}{6}$ times $\frac{2}{2}$. Multiply $\frac{x-1}{4}$ times $\frac{3}{3}$.
