The numerator of a fraction is doubled and the denominator is tripled to get 1 (1/9). What is the original fraction?
一个分数的分子扩大2倍，分母缩小3倍后得1(1/9)，原分数是多少
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<gadget id="calculator">5 / 27</gadget>
<output>5/27 = around 0.185185</output>

<result>5/27 = around 0.185185</result>