# Fraction Computation Review

Analyze the following problems. In which cases do you need to find a common denominator and in which cases could you cross multiply to find an answer? Explain your thinking.

1. Add. $$\dfrac{3}{4}+\dfrac{2}{3}$$
2. Subtract. $$\dfrac{2}{3}-\dfrac{x}{5}$$
3. Multiply. $$\dfrac{3}{4}\cdot{\dfrac{4}{x}}$$
4. Divide. $$\dfrac{7}{12}\div{\dfrac{1}{3}}$$
5. Solve. $$\dfrac{2}{x}=\dfrac{4}{6}$$

Check solutions here.