A and B are two boxes of chess pieces. If (1/8) is taken out of box A and put into box B, the number of pieces in the two boxes is equal. It turns out that the number of chess pieces in Box B is the same as that in Box A.
甲乙两盒棋子，若从甲盒中取出(1/8)放入乙盒，则两盒中棋子数相等．原来乙盒中棋子数是甲盒的多少．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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

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

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