so the best we can do is simplify this expression.
starting by distributing the fractions to the terms inside the parantheses to get
(5/3)x+(8/3)y+(6/4)x-(2/4)y
now we can simplify a couple of the fractions to get
(5/3)x+(8/3)y+(3/2)x-(1/2)y
now we can combine the x & y terms, lets group them to make it easier to see...
(5/3)x+(3/2)x+(8/3)y-(1/2)y
now we need to keep in mind that we need a common denominator to add the fractions, so..
(10/6)x+(9/6)x+(16/6)y-(3/6)y
now combine the like terms and we have.
(19/6)x+(13/6)y
Hope this helped!