For a fraction, the sum of the numerator and denominator is 48. If 1 is added to the numerator and denominator, the resulting fraction will be divided into (2/3). What is the original fraction?
一个分数，分子分母的和是48，如果分子分母都加上1，所得分数约分后为(2/3)，原来的分数是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 48</gadget>
<output>32</output>

<gadget id="calculator">(2/3) - 1</gadget>
<output>-1/3 = around -0.333333</output>

<gadget id="calculator">32 + (-1/3)</gadget>
<output>95/3 = around 31.666667</output>

<gadget id="calculator">1 + (2/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(95/3) / (5/3)</gadget>
<output>19</output>

<gadget id="calculator">48 - 19</gadget>
<output>29</output>

<gadget id="calculator">(95/3) / (5/3) / 29</gadget>
<output>19/29 = around 0.655172</output>

<result>19/29 = around 0.655172</result>