The sum of the numerator and denominator of a fraction is 102. If 19 is subtracted from both the numerator and the denominator, the resulting fraction is (1/15) after simplification. What is the original fraction?
一个分数的分子与分母的和是102，如果分子、分母都减去19，得到的分数化简后是(1/15)，那么原来的分数是多少．
<gadget id="calculator">19 * 2</gadget>
<output>38</output>

<gadget id="calculator">102 - 38</gadget>
<output>64</output>

<gadget id="calculator">1 + 15</gadget>
<output>16</output>

<gadget id="calculator">64 / 16</gadget>
<output>4</output>

<gadget id="calculator">4 + 19</gadget>
<output>23</output>

<gadget id="calculator">60 + 19</gadget>
<output>79</output>

<gadget id="calculator">23 / 79</gadget>
<output>23/79 = around 0.291139</output>

<result>23/79 = around 0.291139</result>