For a simple fraction, if 1 is added to the numerator, the fraction value is 1; if the numerator remains unchanged, if 1 is added to the denominator, the fraction value is (5/6), what is the original fraction value?
一个最简分数，若在分子上加1后，分数值为1；分子不变，若在分母上加1后，分数值是(5/6)，原分数值是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>

<result>10/11 = around 0.909091</result>