To build a road, the full length (2/5) of the road was built on the first day, and 50% of the total length was repaired on the second day. There are still 3.2 kilometers left to be repaired. How many kilometers is the total length of this road?
修一条路，第一天修了全长的(2/5)，第二天修了全长的50%，还剩3.2千米没修，这条路全长多少千米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (2/5) - (1/2)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">3.2 / (1/10)</gadget>
<output>32</output>

<result>32</result>