Niu Niu's family wants to pack 945 kilograms of grapes into cardboard boxes and transport them away. If each carton can hold up to 22.5 kilograms, how many cartons does Niu Niu need to buy?
牛牛家要将945千克的葡萄装进纸箱运走．如果每个纸箱最多可以装22.5千克，牛牛家需要买几个纸箱呢？
<gadget id="calculator">945 / 22.5</gadget>
<output>42</output>

<result>42</result>