Question

x/3=14/21

Answer 1

\(\frac{x}{3}=\frac{14}{21}\Rightarrow x=\frac{14}{21}\times3=2\)

Answer 2

x/3=14/21

x/3=2/3

x=3

vậy x=3

Answer 3

Ta có:\(\frac{x}{3}=\frac{14}{21}\)

=>x=14.3:21

=>x=2

Answer 4

\(\frac{x}{3}=\frac{14}{21}\Rightarrow\frac{x}{3}=\frac{x\times7}{3\times7}\)

\(\Leftrightarrow\)  \(x\times7=14\)

 x = 14 : 7

x = 2