An engineering team repairs a canal. 45 meters were repaired in 5 days, accounting for (1/4) of this canal. According to this calculation, how many days will it take to complete the canal?
一个工程队修一条水渠．5天修了45米，占这条水渠的(1/4)．照这样计算，修完水渠共需多少天？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">5 / (1/4)</gadget>
<output>20</output>

<result>20</result>