Worker Uncle Li makes 5 parts in 4 minutes, how many minutes does it take to make each part?
工人李叔叔4分钟做5个零件，每个零件需要做多少分钟．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>