Fold a piece of square paper in half 4 times, and then unfold it, how much does each piece take up on this piece of paper
把一张方形纸对折4次，再展开，每份占这张纸的多少
<gadget id="calculator">2 * 2 * 2 * 2</gadget>
<output>16</output>

<gadget id="calculator">1 / 16</gadget>
<output>1/16 = around 0.0625</output>

<result>1/16 = around 0.0625</result>