Question

Tìm x, biết: \(\frac{2}{5}+\frac{3}{5}:x=\frac{9}{11}\)

Answer 1

\(\frac{2}{5}+\frac{3}{5}:x=\frac{9}{11}=>\frac{3}{5}:x=\frac{9}{11}-\frac{2}{5}=\frac{23}{55}=>x=\frac{3}{5}:\frac{23}{55}=\frac{3}{5}.\frac{55}{23}=\frac{33}{23}\)

Answer 2

\(\Rightarrow\frac{3}{5}:x=\frac{9}{11}-\frac{2}{5}=\frac{23}{55}\)

\(\Rightarrow x=\frac{3}{5}:\frac{23}{55}=\frac{33}{23}\)

Answer 3

\(\frac{33}{23}\)

Answer 4

=>3/5:x=9/11-2/5

x=3/5:23/55

x=3/5.55/23

x=33/23

Answer 5

\(\frac{2}{5}+\frac{3}{5}:x=\frac{9}{11}\)

          \(\frac{3}{5}:x=\frac{9}{11}-\frac{2}{5}\)

           \(\frac{3}{5}:x=\frac{23}{55}\)

                   \(x=\frac{23}{55}:\frac{3}{5}\)

                    \(x=\frac{23}{55}\cdot\frac{5}{3}\)

                    \(x=\frac{23}{33}\)

Answer 6

\(\frac{9}{11}\)- \(\frac{2}{5}\)=\(\frac{3}{5x}\)\(\Rightarrow\)\(\frac{23}{55}\)=\(\frac{3}{5x}\)\(\Rightarrow\)\(5x=\frac{55.3}{23}\)\(\Rightarrow\)\(x=\frac{55.3}{23.5}\)\(\Rightarrow\)\(x=\frac{33}{23}\)