The third and fourth grade students participated in the tree planting activity together. There are 74 students in the third grade and 78 students in the fourth grade. There are 8 people in each group. How many groups can they be divided into?
三、四年级同学一起参加植树活动．三年级74人，四年级78人，每8人一组，一共可以分成多少组？
<gadget id="calculator">74 + 78</gadget>
<output>152</output>

<gadget id="calculator">152 / 8</gadget>
<output>19</output>

<result>19</result>