Xiao Ming walked 1km in 15 minutes, what fraction of a kilometer per minute on average?
小明15分钟走了1km，平均每分钟走几分之几km？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

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