An antelope runs 1200 meters in 3 minutes. Estimate how many kilometers it runs in 2 hours.
羚羊3分钟跑1200米，估一估，它2小时大约跑多少千米．
<gadget id="calculator">1_200 / 3</gadget>
<output>400</output>

<gadget id="calculator">60 / 1_000</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">400 * 2 * (3/50)</gadget>
<output>48</output>

<result>48</result>