The number of girls in a class accounts for 3/8 of the class, and how many girls account for boys.
一个班的女生人数占班级的(3/8)，女生占男生的多少．
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>