Li Hang’s home is 11.25 kilometers away from the school. He rides to school every day, and it takes 1.5 hours to go back and forth. How many kilometers does Li Hang travel on average per hour?
李航家离学校11.25千米，他每天骑车上学，往返一次共需1.5时，李航平均每小时行多少千米？
<gadget id="calculator">2 / 1.5</gadget>
<output>1.333333</output>

<gadget id="calculator">11.25 * 1.333333</gadget>
<output>14.999996</output>

<result>14.999996</result>