There are 24 boys and 28 girls in the handicraft club of our school's "Happy Activity Day". When doing handicrafts, every 4 people are divided into a group. How many groups can they be divided into?
我校"快乐活动日"的手工制作社团有男生24人，女生28人，做手工时，每4人分成一个小组，一共可以分成多少个小组？
<gadget id="calculator">24 + 28</gadget>
<output>52</output>

<gadget id="calculator">52 / 4</gadget>
<output>13</output>

<result>13</result>