A piece of work can be completed in 6 hours by A and B in cooperation, B can be completed in 8 hours alone, and how many hours can A be able to complete it alone?
一件工作，甲乙合作6小时完成，乙独做8小时完成，甲独做多少小时完成．
<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 / (1/24)</gadget>
<output>24</output>

<result>24</result>