The distance between A and B is 420km, how many centimeters should be drawn on the map of 1:6000000.
甲、乙两地间的距离是420km，画在1：6000000的地图上，应画多少cm．
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">420 * 100_000 * (1/6_000_000)</gadget>
<output>7</output>

<result>7</result>