The road construction team planned to complete a road in 60 days, but actually finished it 10 days ahead of schedule. By how much is the actual daily work efficiency higher than the planned work efficiency?
修路队计划60天修完一条路，实际提前10天就修完，实际每天的工作效率比计划的工作效率高几分之几？
<gadget id="calculator">60 - 10</gadget>
<output>50</output>

<gadget id="calculator">1 / 50</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(1/50) - (1/60)</gadget>
<output>1/300 = around 0.003333</output>

<gadget id="calculator">(1/300) / (1/60)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>