If the numerator of a fraction is added to its denominator, and the denominator remains unchanged, the resulting number is 8 times the original fraction. What is the original fraction?
一个分数的分子加上它的分母，其分母不变，所得的数是原分数的8倍，原分数是多少．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>