The second grade bought 16 science books and 26 story books. Distribute these books equally to 7 classes in the second grade. How many books are divided into each class on average?
二年级买来科技书16本，故事书26本．把这些书平均分给二年级7个班，平均每个班分多少本？
<gadget id="calculator">16 + 26</gadget>
<output>42</output>

<gadget id="calculator">42 / 7</gadget>
<output>6</output>

<result>6</result>