There are 24 boys participating in running, 20% more than girls, how many girls participate?
参加跑步的男生有24人，比女生多20%，女生有多少人参加．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">24 / (6/5)</gadget>
<output>20</output>

<result>20</result>