There is a fraction, its numerator plus 2 can be reduced to (4/7); its denominator minus 2 can be reduced to (14/25). What is this score.
有一个分数，它的分子加2，可以约简为(4/7)；它的分母减2，可以约简为(14/25)．这个分数是多少．
<gadget id="calculator">42 / 77</gadget>
<output>6/11 = around 0.545455</output>

<result>6/11 = around 0.545455</result>