The third and fourth grade students go on a spring outing. There are 87 students in the third grade and 74 in the fourth grade. Every 7 students are divided into groups. How many groups can they be divided into in total?
三、四年级学生去春游，三年级87人，四年级74，每7人分成一组，一共可以分成多少组．
<gadget id="calculator">87 + 74</gadget>
<output>161</output>

<gadget id="calculator">161 / 7</gadget>
<output>23</output>

<result>23</result>