Students transferred from class A (1/8) to class B, the number of students in the two classes is equal. It turns out that Class B is much less than Class A.
从甲班调(1/8)的学生到乙班，则两班人数相等．原来乙班比甲班少多少．
<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

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