Xiao Ming and Xiao Dong practice long-distance running on the circular track of the campus every morning. It takes Xiao Ming 10 minutes to complete a lap, and Xiao Dong 11 minutes to complete a lap. One day the two started from the same place with their backs facing each other. They met on the way, and Xiao Ming It happened to run 130 meters longer than Xiaodong, how many meters is this circular runway?
小明和小东每天早晨都在校园的环形跑道上练习长跑，小明需10分钟跑完一圈，小东跑完一圈需11分钟，有一天两人从同一地点背向出发，途中相遇，小明正好比小东多跑了130米，求这个环形跑道多少米？
<gadget id="calculator">1 / 110</gadget>
<output>1/110 = around 0.009091</output>

<gadget id="calculator">110 / 21</gadget>
<output>110/21 = around 5.238095</output>

<gadget id="calculator">(1/110) * (110/21)</gadget>
<output>1/21 = around 0.047619</output>

<gadget id="calculator">130 / (1/21)</gadget>
<output>2_730</output>

<result>2_730</result>