The sum of the numerator and denominator of a fraction is 30. After adding 22 to the denominator, a new fraction is obtained. Converting this new fraction into the simplest fraction is (1/3). What was the original score?
一个分数的分子与分母的和是30，分母加上22后，得到一个新分数，把这个新分数化成最简分数是(1/3)．原来的分数是多少？
<gadget id="calculator">30 + 22</gadget>
<output>52</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">52 * (1/4)</gadget>
<output>13</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">52 * (3/4)</gadget>
<output>39</output>

<gadget id="calculator">39 - 22</gadget>
<output>17</output>

<gadget id="calculator">13 / 17</gadget>
<output>13/17 = around 0.764706</output>

<result>13/17 = around 0.764706</result>