A fraction, if 1 is added to its numerator, the fraction is equal to 1; if 1 is added to its denominator, the fraction is equal to (8/9). What was the original score.
一个分数，如果在它的分子上加1，这个分数就等于l；如果在它的分母上加1，这个分数就等于(8/9)．原来的分数是多少．
<gadget id="calculator">17 - 1</gadget>
<output>16</output>

<gadget id="calculator">16 / 17</gadget>
<output>16/17 = around 0.941176</output>

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