A project is completed in 8 days and B in 6 days, how much slower is A than B?
一项工程，甲用8天完成，乙用6天完成，甲比乙慢多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

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

<gadget id="calculator">(1/6) - (1/8)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(1/24) / (1/6)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>