There are 3 boxes of 20kg biscuits, and they are distributed to 4 classes on average. What fraction of these biscuits are allocated to each class? How many boxes of cookies are given to each class?
有3箱20千克的饼干，平均分给4个班，每个班级分得这些饼干的几分之几？每个班级分得多少箱饼干？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 * (1/4)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>