There are 15 classes in Bandi Primary School, and 3 classes in Qinghe Primary School. How many times are the classes in Bandi Primary School than in Qinghe Primary School?
板底小学共有15个班级，清河小学有3个班，板底小学班级是清河小学班级的多少倍
<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<result>5</result>