Xiaohong rode a bicycle (3/5) for 15 kilometers in an hour, how many kilometers per hour on average.
小红骑自行车(3/5)小时行了15千米，平均每小时行多少千米．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<result>25</result>