The scale of a map is (1/36000000), the actual distance between A and B is 900 kilometers, what is the distance in centimeters between A and B on this map.
一幅地图的比例尺是(1/36000000)，A，B两地的实际距离是900千米，在这幅地图上AB两地的图距是多少厘米．
<gadget id="calculator">1 / 36_000_000</gadget>
<output>1/36_000_000 = around 0</output>

<gadget id="calculator">900 * 100_000 * (1/36_000_000)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>