Li Jiao does 30 sit-ups a minute, which happens to be Zhang Qiang's (3/5). How many does Zhang Qiang make in one minute?
李娇一分钟做仰卧起坐30个，正好是张强的(3/5)．张强一分钟做多少个？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / (3/5)</gadget>
<output>50</output>

<result>50</result>