Question

\(\frac{3}{4}-\frac{2}{5}:x=\frac{4}{7}\)

Answer 1

\(\frac{3}{4}-\frac{2}{5}:x=\frac{4}{7}\)

\(=\frac{2}{5}:x=\frac{3}{4}-\frac{4}{7}\)

\(=\frac{2}{5}:x=\frac{5}{28}\)

\(\Rightarrow x=\frac{56}{25}\)

Answer 2

\(\Rightarrow\frac{2}{5}:x=\frac{2}{3}-\frac{4}{7}\)

\(\Rightarrow\frac{2}{5}:x=\frac{7}{6}\)

\(\Rightarrow x=\frac{2}{5}:\frac{7}{6}\)

\(\Rightarrow x=\frac{12}{35}\)

tíc mình nha

Answer 3

\(\frac{3}{4}-\frac{2}{5}:x=\frac{4}{7}\)

\(\frac{2}{5}:x=\frac{3}{4}-\frac{4}{7}\)

\(\frac{2}{5}:x=\frac{5}{28}\)

\(x=\frac{2}{5}:\frac{5}{28}\)

\(x=\frac{2}{5}.\frac{28}{5}=\frac{56}{25}\)

Answer 4

\(\frac{3}{4}-\frac{2}{5}:x=\frac{4}{7}\)

           \(\frac{2}{5}:x=\frac{3}{4}-\frac{4}{7}\)

           \(\frac{2}{5}:x=\frac{5}{28}\)

                 \(x=\frac{2}{5}:\frac{5}{28}\)

                 \(x=\frac{2}{5}.\frac{28}{5}\)  

                \(x=\frac{56}{25}\)

Answer 5

\(\frac{3}{4}-\frac{2}{5}:x=\frac{4}{7}\)

 \(\frac{2}{5}:x=\frac{3}{4}-\frac{4}{7}\)

 \(\frac{2}{5}:x=\frac{5}{28}\)

 \(x=\frac{56}{25}\)