On a map with a scale of 1:5000000, the distance between A and B is 6 cm. On another map with a scale of 1:2000000, the distance between A and B is how many centimeters?
在一幅比例尺是1：5000000的地图上，量得甲、乙两地的距离是6厘米，在另一幅比例尺是1：2000000的地图上，甲、乙两地之间的图上距离是多少厘米？
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">6 / (1/5_000_000)</gadget>
<output>30_000_000</output>

<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">30_000_000 * (1/2_000_000)</gadget>
<output>15</output>

<result>15</result>