For a fraction, the sum of the original numerator and denominator is 28. Get (1/3) after approximation. What is the original score.
一个分数，原分子与分母的和是28．约分后得(1/3)．这个分数原来是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>