A car travels 1 km in 2 minutes, how many kilometers per minute on average.
一辆汽车2分钟行驶1千米，平均每分钟行驶多少千米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>