In the handicraft class, Xiaofang folded a piece of square colored paper with a side length of 3 decimeters in half three times. What is the area of each piece after unfolding?
手工课上，小芳把一张边长是3分米的正方形彩纸对折3次，展开后每一份的面积是多少平方分米？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">3 * 3 * (1/8)</gadget>
<output>9/8 = around 1.125</output>

<result>9/8 = around 1.125</result>