Plan to make 30 parts in 5 hours, how many of these parts will be made in 2 hours
计划5小时做30个零件，2小时做这些零件的多少
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>