The 56 students in the aircraft model interest class were divided into 4 groups on average, and the third group was the whole class ((())/(())).
把航模兴趣班的56名同学平均分成4组，第3组同学是全班的((())/(()))．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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