A construction team builds a road. (1/4) built this section of road in the first week, and (1/3) built this section of road in the second week. The second week repaired 2.4 kilometers more than the first week. How long is this road in kilometers?
某工程队修筑一条公路．第一周修了这段公路的(1/4)，第二周修筑了这段公路的(1/3)，第二周比第一周多修了2.4千米．这段公路全长多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">2.4 / (1/12)</gadget>
<output>28.8</output>

<result>28.8</result>