Fold a piece of rectangular paper in half, fold it in half, and fold it in half again, so that it is folded in half three times, how much is each small piece of the whole paper
把一张长方形的纸对折、对折、再对折，这样对折了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>