There are 40 students in the third grade who plant trees, and they are divided into 4 groups on average. The number of the third group is ((())/(())) of the total number of tree planters.
三年级有40名学生去植树，平均分成4组，第3组的人数是植树总人数的((())/(()))．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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