Question

tìm X:   

2.5x25/X=5/6

dấu gạch ngang là dấu phân số 

 

Answer 1

2.5 x \(\frac{25}{x}\)=   \(\frac{5}{6}\)

\(\frac{62.5}{x}\)=\(\frac{5}{6}\)

\(x\)=      62.5     :      \(\frac{5}{6}\)

\(x\)=      62.5    x      \(\frac{6}{5}\)

\(x\)=      75

Answer 2

\(2.5\cdot\frac{25}{x}=\frac{5}{6}\)

\(=\frac{62.5}{x}=\frac{5}{6}\)

\(\Rightarrow62.5\cdot6=5x\)

375 = 5x

x = 375 : 5

x = 75

Answer 3

\(2,5\times\frac{25}{x}=\frac{5}{6}\)

\(\frac{25}{x}=\frac{5}{6}\div\frac{25}{10}\)

\(\frac{25}{x}=\frac{50}{150}\)

\(=>x=50\div25=2\)

\(=>\) \(150\div2=75\)

\(=>x=75\)