The third graders went to plant trees. There were 134 girls and 146 boys. They were divided into groups of 4. How many groups can they be divided into?
三年级学生去植树，女生去了134人，男生去了146人，4人分一组，一共可以分多少组？
<gadget id="calculator">134 + 146</gadget>
<output>280</output>

<gadget id="calculator">280 / 4</gadget>
<output>70</output>

<result>70</result>