On the 1:20000000 map, Xiaoli measured that the distance between Beijing and Nanjing is about 6 centimeters, and the actual distance between the two places is about how many kilometers.
小丽在1：20000000的地图上量得北京到南京的距离约为6厘米，两地实际距离约为多少千米．
<gadget id="calculator">1 / 20_000_000</gadget>
<output>1/20_000_000 = around 0</output>

<gadget id="calculator">6 / (1/20_000_000) / 100_000</gadget>
<output>1_200</output>

<result>1_200</result>