比较分数复习

$\begin{array}{rcl}{\displaystyle \frac{3}{4}}\times {\displaystyle \frac{5}{5}}& =& {\displaystyle \frac{15}{20}}\\ \\ {\displaystyle \frac{5}{10}}\times {\displaystyle \frac{2}{2}}& =& {\displaystyle \frac{10}{20}}\end{array}$‍

$15>10$‍

${\displaystyle \frac{15}{20}}>{\displaystyle \frac{10}{20}}$‍

${\displaystyle \frac{3}{4}}>{\displaystyle \frac{5}{10}}$‍