To build a road, the road was built in 8 days (8/15), according to this calculation, how many days will it take to complete the road?
修一条公路，8天修了这条路的(8/15)，照这样计算，修完这条路共需多少天？
<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">(8/15) / 8</gadget>
<output>1/15 = around 0.066667</output>

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

<result>15</result>