Xiaohua walked 1 kilometer in 13 minutes, how many kilometers per minute on average.
小华用13分钟走了1千米路，平均每分钟走多少千米．
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<result>1/13 = around 0.076923</result>