question_answer

If \[\frac{x}{y}=\frac{3}{4},\]then the value of \[\left( \frac{6}{7}+\frac{y-x}{y+x} \right)\]          equals ___.                         

A)  \[\frac{5}{7}\]                                   

B)  \[1\frac{1}{7}\]                     

C)         1                    

D)         2