Question

-1/2+[(-4/3)+3/7] and [(-1/2)+3/7]+(-4/3) are there same

Answer 1

yes they are same 
-1/2+[(-4/3)+3\7]=-21-56+18\42=-59\42=[(-1\2)+3\7]+(-4\3)=-59\42
both will be same since the denominators and the signs are same 
therefore answeris YES 

Answer 2

SEE THE PIC

-------------------------
HOPE IT HELPS U.