How much of the original figure is the small rectangle obtained by folding a piece of rectangular paper in half three times?
把一张长方形纸对折3次后得到的小长方形占原来图形的多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 * (1/2) * (1/2) * (1/2)</gadget>
<output>1/8 = around 0.125</output>

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