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