Fold a piece of paper in half 3 times, what is the size of the paper after each fold.
把一张纸对折3次，对折后的每一份是这张纸的多少．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>