Divide (4/9) of a piece of paper into 2 parts on average, and each part is ((())/(())) of this paper.
把一张纸的(4/9)平均分成2份，每份是这张纸的((())/(()))．
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(4/9) / 2</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 * (2/9)</gadget>
<output>2/9 = around 0.222222</output>

<result>2/9 = around 0.222222</result>