It takes 8 days for Master Wang to complete a batch of tasks. On average, ((())/(())) of this batch of tasks is completed every day, how many days to complete half of this batch of tasks.
王师傅完成一批任务要8天，平均每天完成这批任务的((())/(()))，多少天完成这批任务的一半．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">(1/2) / (1/8)</gadget>
<output>4</output>

<result>4</result>