The road construction team repaired a road, and repaired 1/5 of the full length on the first day, and 12 kilometers on the second day, 35% of the total length in two days. How long is this road in kilometers?
修路队修一条路，第一天修了全长的(1/5)，第二天修了12千米，两天共修了全长的35%．这条路全长多少千米？
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(7/20) - (1/5)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">12 / (3/20)</gadget>
<output>80</output>

<result>80</result>