Obviously, he runs for 19 minutes every morning, and his speed is about 110 m/min. How many kilometers does he run every day?
明明每天早上跑步19分钟，他的速度大约是110米/分，他每天大约跑步多少千米．
<gadget id="calculator">19 / 1_000</gadget>
<output>19/1_000 = around 0.019</output>

<gadget id="calculator">110 * (19/1_000)</gadget>
<output>209/100 = around 2.09</output>

<result>209/100 = around 2.09</result>