Mr. Wang spent 360 yuan to buy 8 footballs, and Mr. Li spent 540 yuan to buy the same football. How many footballs did Mr. Li buy?
王老师买8个足球花了360元，李老师买同样的足球花了540元，李老师买了几个足球？
<gadget id="calculator">360 / 8</gadget>
<output>45</output>

<gadget id="calculator">540 / 45</gadget>
<output>12</output>

<result>12</result>