The teacher distributes oranges to the students in the class. Everyone gets the same amount of oranges. If 7 people get 13 oranges, if 5 people get 3 oranges, how many oranges do they get?
老师给班里的同学们分桔子，每个人所分得的桔子一样多，如果分给7个人少13个，如果分给5个人少3个，问每个人分几个桔子？
<gadget id="calculator">13 - 3</gadget>
<output>10</output>

<gadget id="calculator">7 - 5</gadget>
<output>2</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>5</result>