What is the ratio of 4 centimeters to 4 kilometers
4厘米：4千米的比值是多少
<gadget id="calculator">1_000 * 100</gadget>
<output>100_000</output>

<gadget id="calculator">1 / 100_000</gadget>
<output>1/100_000 = around 0.00001</output>

<result>1/100_000 = around 0.00001</result>