If boys in a class account for 60% of girls, what is the number of girls in the class?
某班男生是女生的60%，女生人数是全班的多少．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">1 / (8/5)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>