To build a road, 15% of the road was repaired in the first week, and (2/5) kilometers were repaired in the second week, which was (1/3) less than in the first week. How many kilometers is the total length of this road?
修一条路，第一周修了15%，第二周修了(2/5)千米，比第一周少修(1/3)，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">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/20) * (2/3)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(2/5) / (1/10)</gadget>
<output>4</output>

<result>4</result>