There is a fraction, the numerator can be reduced to (1/3) by adding 3, and the numerator can be reduced to (1/12) by subtracting 3. What is the fraction?
有一个分数，分子加上3可约简为(1/3)，分子减去3可约简为(1/12)，这个分数是多少．
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 + 9</gadget>
<output>24</output>

<gadget id="calculator">5 / 24</gadget>
<output>5/24 = around 0.208333</output>

<result>5/24 = around 0.208333</result>