There is a drawing that uses 4 centimeters to represent 240 meters, what is its scale
有一幅图纸，用4厘米表示240米，它的比例尺是多少
<gadget id="calculator">240 * 100</gadget>
<output>24_000</output>

<gadget id="calculator">4 / 24_000</gadget>
<output>1/6_000 = around 0.000167</output>

<result>1/6_000 = around 0.000167</result>