Question

3/4 chia x/3=3/2-1/3

Answer 1

Ta có: \(\dfrac{3}{4}:\dfrac{x}{3}=\dfrac{3}{2}-\dfrac{1}{3}\)

\(\Leftrightarrow\dfrac{x}{3}=\dfrac{3}{4}:\dfrac{7}{6}=\dfrac{3}{4}\cdot\dfrac{6}{7}=\dfrac{18}{28}=\dfrac{9}{14}\)

hay \(x=\dfrac{27}{14}\)

Answer 2

\(\dfrac{3}{4}:\dfrac{x}{3}=\dfrac{3}{2}-\dfrac{1}{3}\)

\(\dfrac{3}{4}:\dfrac{x}{3}=\dfrac{7}{6}\)

\(\dfrac{x}{3}=\dfrac{3}{4}:\dfrac{7}{6}\)

\(\dfrac{x}{3}=\dfrac{6}{7}\)

\(x=18\)

 

Answer 3

\(\dfrac{3}{4}:\dfrac{x}{3}=\dfrac{3}{4}-\dfrac{1}{3}\\ \dfrac{3}{4}:\dfrac{x}{3}=\dfrac{5}{12}\\ \)

\(\dfrac{x}{3}=\dfrac{5}{16}\\ 16x=5.3\\ 16x=15\\ x=\dfrac{15}{16}\)

Answer 4

\(\dfrac{3}{4}:\dfrac{x}{3}=\dfrac{3}{2}-\dfrac{1}{3}\)

\(\Leftrightarrow\dfrac{3}{4}:\dfrac{x}{3}=\dfrac{7}{6}\)

\(\Leftrightarrow\dfrac{x}{3}=\dfrac{3}{4}:\dfrac{7}{6}\)

\(\Leftrightarrow\dfrac{x}{3}=\dfrac{3}{4}\cdot\dfrac{6}{7}\)

\(\Leftrightarrow\dfrac{x}{3}=\dfrac{9}{14}\)

\(\Rightarrow14x=27\)

\(\Leftrightarrow x=\dfrac{27}{14}\)