A simple fraction, its numerator is enlarged to 3 times of the original, and the denominator is reduced to the original (1/3) and equals to (1/9). What is this score.
一个最简分数，把它的分子扩大为原来的3倍，分母缩小为原来的(1/3)后等于(1/9)．这个分数是多少．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / (1/3)</gadget>
<output>9</output>

<gadget id="calculator">(1/9) / 9</gadget>
<output>1/81 = around 0.012346</output>

<result>1/81 = around 0.012346</result>