To build a road, 540 meters were built on the first day, and 660 meters on the second day. The total length (3/5) was built in two days. How long is this road in meters?
修一条公路，第一天修了540米，第二天修了660米，两天共修了全长的(3/5)．这条路全长多少米？
<gadget id="calculator">660 + 540</gadget>
<output>1_200</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1_200 / (3/5)</gadget>
<output>2_000</output>

<result>2_000</result>