A fraction is equal to (2/13) after simplification. The sum of the original numerator and denominator is 60. What is the original fraction?
一个分数化简后等于(2/13)，原来分子与分母之和是60，原来的分数是多少？
<gadget id="calculator">2 + 13</gadget>
<output>15</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">13 / 15</gadget>
<output>13/15 = around 0.866667</output>

<gadget id="calculator">60 * (13/15)</gadget>
<output>52</output>

<gadget id="calculator">(2/15) / 52</gadget>
<output>1/390 = around 0.002564</output>

<gadget id="calculator">60 * (1/390)</gadget>
<output>2/13 = around 0.153846</output>

<result>2/13 = around 0.153846</result>