For a fraction, the sum of the numerator and the denominator is 64. If 7 is subtracted from both the numerator and the denominator, the resulting fraction is divided into (2/3). What is the original fraction?
一个分数，分子和分母的和是64，如果分子和分母都减去7，得到的分数约分后为(2/3)，原分数是多少．
<gadget id="calculator">27 / 37</gadget>
<output>27/37 = around 0.72973</output>

<result>27/37 = around 0.72973</result>