On a map with a scale of 1:30 kilometers, the distance on the map between A and B is 15cm. Then on a map with a scale of 1:5000000, what is the distance on the map between A and B?
在一幅比例尺为1：30千米的地图上，甲乙两地的图上距离是15cm，那么在比例尺是1：5000000的地图上，甲乙两地的图上距离是多少？
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">15 / (1/30)</gadget>
<output>450</output>

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

<gadget id="calculator">450 * 100_000 * (1/5_000_000)</gadget>
<output>9</output>

<result>9</result>