The engineering team completes (1/3) of the entire project in 5 days, how many days will it take to complete the entire project?
工程队5天完成全部工程的(1/3)，完成全部工程需要多少天．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) / 5</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 / (1/15)</gadget>
<output>15</output>

<result>15</result>