If 1 is added to the numerator of a fraction, it is equal to 1. If 1 is added to the denominator, it is equal to (8/9). What is the fraction?
一个分数如果分子加上1，就等于1，如果分母加上1，就等于(8/9)，这个分数是多少．
<gadget id="calculator">16 / 17</gadget>
<output>16/17 = around 0.941176</output>

<result>16/17 = around 0.941176</result>