If a person completes a job in 3 days (3/8), how many days will it take to complete the remaining work?
一件工作，某人3天完成(3/8)，照这样计算剩下的工作还要多少天完成．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(3/8) / 3</gadget>
<output>1/8 = around 0.125</output>

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

<result>5</result>