The numerator of a fraction is 12 smaller than the denominator, which equals (7/13) after division. What is the fraction?
一个分数的分子比分母小12，约分后等于(7/13)，这个分数是多少．
<gadget id="calculator">7 / 13</gadget>
<output>7/13 = around 0.538462</output>

<gadget id="calculator">(7/13) * 12</gadget>
<output>84/13 = around 6.461538</output>

<gadget id="calculator">1 - (7/13)</gadget>
<output>6/13 = around 0.461538</output>

<gadget id="calculator">(84/13) / (6/13)</gadget>
<output>14</output>

<gadget id="calculator">14 + 12</gadget>
<output>26</output>

<gadget id="calculator">(84/13) / (6/13) / 26</gadget>
<output>7/13 = around 0.538462</output>

<result>7/13 = around 0.538462</result>