比较分数复习

$\begin{eqnarray} \blueD{\dfrac{3}{4}} \times \dfrac{5}{5} &=& \blueD{\dfrac{15}{20}} \\ \\ \greenD{\dfrac{5}{10}} \times \dfrac{2}{2} &=& \greenD{\dfrac{10}{20}} \end{eqnarray}$

$\blueD{15} > \greenD{10}$start color #11accd, 15, end color #11accd, is greater than, start color #1fab54, 10, end color #1fab54

$\blueD{\dfrac{15}{20}} > \greenD{\dfrac{10}{20}}$start color #11accd, start fraction, 15, divided by, 20, end fraction, end color #11accd, is greater than, start color #1fab54, start fraction, 10, divided by, 20, end fraction, end color #1fab54

$\blueD{\dfrac{3}{4}} > \greenD{\dfrac{5}{10}}$start color #11accd, start fraction, 3, divided by, 4, end fraction, end color #11accd, is greater than, start color #1fab54, start fraction, 5, divided by, 10, end fraction, end color #1fab54