A classmate copied a composition in 15 minutes (3/5). At this speed, how many minutes would it take to finish copying it all.
一位同学15分钟抄写一篇作文的(3/5)，照这样的速度，全部抄完需要多少分钟．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) / 15</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">1 / (1/25)</gadget>
<output>25</output>

<result>25</result>