If Li Wei walks at a speed of 6 kilometers per hour, if he changes his cycling speed to 6 minutes per kilometer, what is his speed in kilometers per hour?
李伟步行速度为每小时6千米，改骑自行车每千米比步行少6分钟，则他骑自行车的速度是多少千米/小时．
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 / (1/15)</gadget>
<output>15</output>

<result>15</result>