Class 6,1) has 56 students, equivalent to (1/2) of class 6,2), and class 6,3) is 1.5 times that of class 6,1). How many students are there in these three classes?
6,1)班有学生56人，相当于6,2)班的(1/2)，6,3)班是6,1)班的1.5倍，这三个班共有学生多少人．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">56 / (1/2)</gadget>
<output>112</output>

<gadget id="calculator">56 * 1.5</gadget>
<output>84</output>

<gadget id="calculator">56 + 112 + 84</gadget>
<output>252</output>

<result>252</result>