A project is done alone, team A needs 8 days to complete, and team B needs 10 days to complete. The work efficiency of team B is much slower than that of team A.
一项工程单独做，甲队需8天完成，乙队需10天完成，乙队的工作效率比甲队慢多少．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/8) - (1/10)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/40) / (1/8)</gadget>
<output>1/5 = around 0.2</output>

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