Divide 1 meter into 1000 parts on average, and each part is 1 mm long. 1 mm is ((())/(())) meters, and how many meters can be written.
把1米平均分成1000份，每份长1毫米，1毫米是((())/(()))米，还可以写成多少米．
<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<result>1/1_000 = around 0.001</result>