To build a road, the full length (1/3) was built on the first day, and 50% of the total length was repaired on the second day, leaving 3.2 kilometers to be repaired. How many kilometers is the total length of this road?
修一条公路，第一天修了全长的(1/3)，第二天修了全长的50%，还剩3.2千米没修，这条公路全长多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 - (1/3) - (1/2)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">3.2 / (1/6)</gadget>
<output>19.2</output>

<result>19.2</result>