Question

[Khoa Nguyen Xuan Dang]

so sánh

a)\(\frac{18}{91}\) và\(\frac{23}{114}\) b)\(\frac{21}{52}\) và\(\frac{213}{523}\) c)\(\frac{1313}{9191}\) và\(\frac{1111}{7373}\)

Answer 1

[Linh Trần]

\(c\frac{1313}{9191}=\frac{1313:101}{9191:101}=\frac{13}{91}=\frac{1}{7}\)

\(\frac{1111}{7373}=\frac{1111:101}{7373:101}=\frac{11}{73}\)

\(mà\frac{1}{7}=\frac{1}{77}\Rightarrow\frac{11}{77}< \frac{11}{73}\)

vậy \(\frac{1313}{9191}< \frac{1111}{7373}\)