The numerator of a fraction is the smallest prime number and the denominator is the largest odd number within 10. What is the fraction?
一个分数的分子是最小质数，分母是10以内最大的奇数，这个分数是多少．
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

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