For a fraction, the sum of the numerator and the denominator is 119. After subtracting 29 from the denominator, the fractional value of this fraction is 0.5. What is the original fraction?
一个分数，分子与分母的和是119，把它的分母减去29后，这个分数的分数值是0.5，原来的分数是多少．
<gadget id="calculator">30 / 89</gadget>
<output>30/89 = around 0.337079</output>

<result>30/89 = around 0.337079</result>