There is a fraction, if you add 12 to the numerator, the fraction is equal to 1; if you add 8 to the denominator, the fraction is equal to (1/5). What is the original score.
有一分数，如果把分子加上12，这个分数就和1相等；如果把分母加上8，这个分数就和(1/5)相等．这个分数原来是多少．
<gadget id="calculator">5 + 12</gadget>
<output>17</output>

<gadget id="calculator">5 / 17</gadget>
<output>5/17 = around 0.294118</output>

<result>5/17 = around 0.294118</result>