Fold a rectangular piece of paper in half twice, and each part occupies ((())/(())) of the piece of paper.
把一张长方形纸条对折2次，每份占这张纸条的((())/(()))．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>