square paper is folded in half consecutively 3 times and unfolded, one of which occupies the square paper. How many
将一张正方形纸连续对折3次后展开，其中一份占这张正方形纸的．多少
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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