On a map with a scale of 1:2000000, the distance between A and B is 1.8 cm. What is the actual distance?
在比例尺是1：2000000的地图上量得甲、乙两地的距离是1.8厘米，实际距离是多少．
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">1.8 / (1/2_000_000) / 100_000</gadget>
<output>36</output>

<result>36</result>