The time for Uncle Wang to process a part has been reduced from 8 minutes to 5 minutes, how much his work efficiency has improved.
王叔叔加工一个零件的时间由原来的8分钟减少到5分钟，他的工作效率提高了多少．
<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>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

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

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