Xiao Ming and his two classmates made 12 lanterns, how many did each person make on average?
小明和他的两个同学做了12个灯笼，平均每人做了多少个？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<result>4</result>