There are 246 boys and 234 girls in the fourth grade. If every 30 students in the whole grade are divided into an activity group, how many groups can the fourth grade be divided into?
四年级有男生246人，女生234人，如果把全年级每30人分成一个活动小组，四年级一共可以分成多少个小组？
<gadget id="calculator">246 + 234</gadget>
<output>480</output>

<gadget id="calculator">480 / 30</gadget>
<output>16</output>

<result>16</result>