The road repair team built a road. On the first day, it repaired the full length (1/6), and on the second day, it repaired the full length (1/7). In two days, it built a total of 260 meters. How many meters is the total length of this road?
修路队修一条公路，第一天修了全长的(1/6)，第二天修了全长的(1/7)，两天共修了260米，这条公路全长多少米？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(1/6) + (1/7)</gadget>
<output>13/42 = around 0.309524</output>

<gadget id="calculator">260 / (13/42)</gadget>
<output>840</output>

<result>840</result>