The third grade bought 18 science books and 24 story books. Distribute these books equally to the six classes of the third grade. How many books are divided into each class on average?
三年级买来科技书18本，故事书24本．把这些书平均分给三年级六个班，平均每个班分多少本？
<gadget id="calculator">18 + 24</gadget>
<output>42</output>

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

<result>7</result>