The number of boys in a class is 5/8 of the number of girls, so what fraction of the number of girls in this class is the number of the whole class?
某班男生人数是女生人数的(5/8)，那么这个班女生人数是全班人数的几分之几？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">13 / 8</gadget>
<output>13/8 = around 1.625</output>

<gadget id="calculator">(5/8) / (13/8)</gadget>
<output>5/13 = around 0.384615</output>

<result>5/13 = around 0.384615</result>