A distance of 1 kilometer is completed in 15 minutes, how many kilometers per minute on average.
1千米的路程15分钟走完，平均每分钟走多少千米．
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<result>1/15 = around 0.066667</result>