A piece of rectangular paper is folded in half consecutively 3 times, one of which is ((())/(())) of this paper.
一张长方形的纸，连续对折3次，其中的一份是这张纸的((())/(()))．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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