Divide 45 and skipping ropes evenly among 7 classes, and there are 3 left. How many skipping ropes are allocated to each class?
把45跟跳绳平均分给7个班，还剩下3根，每班分到几根跳绳？
<gadget id="calculator">45 - 3</gadget>
<output>42</output>

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

<result>6</result>