To build a road, the full length (1/4) was repaired in 2 days. If another 80 meters were repaired, it would be exactly (3/8) of this road. According to the work efficiency of the previous two days, it would take more time to complete the road How many days?
修一条公路，2天修了全长的(1/4)，如果再修80米，刚好是这条公路的(3/8)，按前两天的工作效率，修完这条公路还要用几天？
<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">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) / 2</gadget>
<output>1/8 = around 0.125</output>

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

<result>5</result>