`#Mon`
`@\frac{2}{5}=\frac{2xx2}{5xx2}=\frac{4}{10}`
`@\frac{12}{25}=\frac{12xx4}{25xx4}=\frac{48}{100}`
`@\frac{35}{50}=\frac{35xx2}{50xx2}=\frac{70}{100}`
`Hoặc:` `\frac{35}{50}=\frac{35:5}{50:5}=\frac{7}{10}`
`@\frac{14}{200}=\frac{14:2}{200:2}=\frac{7}{100}`
`Hoặc:` `\frac{14}{200}=\frac{14xx5}{200xx5}=\frac{70}{1000}`