A batch of parts can be completed by A alone in 5 days, and by B alone in 8 days, how much higher is the work efficiency of A than that of B?
一批零件，甲单独做5天完成，乙单独做8天完成，则甲的工作效率比乙的工作效率高多少
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/5) - (1/8)</gadget>
<output>3/40 = around 0.075</output>

<gadget id="calculator">(3/40) / (1/8)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>