If it takes 10 hours to complete a job (5/12), how many hours will it take to complete (2/3).
一件工作若完成它的(5/12)用10小时，若完成它的(2/3)用多少小时．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(5/12) / 10</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(2/3) / (1/24)</gadget>
<output>16</output>

<result>16</result>