On a map, 1 cm represents the actual distance of 60 kilometers, what is the scale
在一幅地图上，1厘米表示实际距离60千米，则比例尺为多少
<gadget id="calculator">60 * 100_000</gadget>
<output>6_000_000</output>

<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<result>1/6_000_000 = around 0</result>