On a map with a scale of 1:6000000, the distance between A and B is 15 cm. If it is drawn on a map with a scale of 1:5000000, what is the distance between A and B on the map?
在比例尺为1：6000000的地图上，量得A、B两地的距离是15厘米．如果画在比例尺是1：5000000的地图上，A、B两地的图上距离应画多少？
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">15 / (1/6_000_000)</gadget>
<output>90_000_000</output>

<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">90_000_000 * (1/5_000_000)</gadget>
<output>18</output>

<result>18</result>