Fold a piece of square paper in half 4 times and unfold it, 3 of which are equal to the size of the paper
把一张正方形纸对折4次后展开，其中的3份是这张纸的多少
<gadget id="calculator">3 / 16</gadget>
<output>3/16 = around 0.1875</output>

<result>3/16 = around 0.1875</result>