To build a road, 200 meters were built on the first day, 340 meters on the second day, and 1/7 of the total length was repaired on the second day compared to the first day. How many meters is the total length of this road?
修一条路，第一天修了200米，第二天修了340米，第二天比第一天多修了全长的(1/7)，这条路全长多少米？
<gadget id="calculator">340 - 200</gadget>
<output>140</output>

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

<gadget id="calculator">140 / (1/7)</gadget>
<output>980</output>

<result>980</result>