A project can be done on average (1/8) per day, how many days can it be completed, and the whole project can be done in 3 days ((())/(())).
一项工程，平均每天做(1/8)，多少天可以做完，3天可以做全工程的((())/(()))．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / (1/8)</gadget>
<output>8</output>

<result>8</result>