Fold a piece of rectangular paper in half 3 times, each small piece is equal to the whole piece of paper.
把一张长方形纸对折3次，每一小块是整张纸的多少．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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