For a fraction, the numerator is enlarged by 9 times, and the denominator is reduced to (1/3) of the original number, which is 2.7. What is the fraction?
一个分数，分子扩大9倍，分母缩小到原数的(1/3)，得2.7，这个分数是多少．
<gadget id="calculator">27 / 9</gadget>
<output>3</output>

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

<gadget id="calculator">10 / (1/3)</gadget>
<output>30</output>

<gadget id="calculator">3 / 30</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>