Fold a piece of rectangular paper in half, fold it in half, and fold it in half again. After unfolding, one part of the paper is ((())/(())).
将一张长方形纸对折、对折、再对折，展开后其中的1份是这张纸的((())/(()))．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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