In the third grade, there are 24 boys and 21 girls. There are 9 students in a big boat. All the students take the big boat. How many boats are needed? What is the column
三年级有男生24人，女生21人，一条大船坐学生9人，同学们都坐大船，需要多少条船？列式是多少
<gadget id="calculator">24 + 21</gadget>
<output>45</output>

<gadget id="calculator">45 / 9</gadget>
<output>5</output>

<result>5</result>