Divide a class of students into 5 groups on average, each group is the number of this class
把1个班同学平均分成5个小组，每个小组是这个班的多少
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>