Divide a class of students into 4 groups on average, and the number of people in each group accounts for the number of people in the class.
把一班学生平均分成4组，每组人数占全班人数的多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>