For a fraction, the denominator is 10 times the numerator, and the denominator is 27 more than the numerator. What is the fraction?
一个分数，分母是分子的10倍，分母比分子多27，这个分数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

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

<gadget id="calculator">3 + 27</gadget>
<output>30</output>

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

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