f) \(\dfrac{3}{4}\cdot x=\dfrac{3}{5}\) \(x=\dfrac{3}{5}\div\dfrac{3}{4}\) \(x=\dfrac{4}{5}\)g) \(x+\dfrac{1}{2}=\dfrac{3}{8}\cdot\dfrac{4}{3}\) \(x+\dfrac{1}{2}=\dfrac{1}{2}\) \(x=\dfrac{1}{2}-\dfrac{1}{2}\) \(=0\)Câu trả lời: f) \(\dfrac{3}{4}\cdot x=\dfrac{3}{5}\) \(x=\dfrac{3}{5}\div\dfrac{3}{4}\) \(x=\dfrac{4}{5}\)g) \(x+\dfrac{1}{2}=\dfrac{3}{8}\cdot\dfrac{4}{3}\) \(x+\dfrac{1}{2}=\dfrac{1}{2}\) \(x=\dfrac{1}{2}-\dfrac{1}{2}\) \(=0\)

f)\(x=\dfrac{3}{5}:\dfrac{3}{4}\)\(x=\dfrac{3}{5}\times\dfrac{4}{3}\)\(x=\dfrac{12}{15}\)\(x=\dfrac{4}{5}\)g)\(x+\dfrac{1}{2}=\dfrac{12}{24}\)\(x+\dfrac{1}{2}=\dfrac{1}{2}\)\(x=\dfrac{1}{2}-\dfrac{1}{2}\)\(x=0\) Câu trả lời: f)\(x=\dfrac{3}{5}:\dfrac{3}{4}\)\(x=\dfrac{3}{5}\times\dfrac{4}{3}\)\(x=\dfrac{12}{15}\)\(x=\dfrac{4}{5}\)g)\(x+\dfrac{1}{2}=\dfrac{12}{24}\)\(x+\dfrac{1}{2}=\dfrac{1}{2}\)\(x=\dfrac{1}{2}-\dfrac{1}{2}\)\(x=0\)