Adding Rational Expressions Simplify each expression x 2y x 3y 9x 9x2 A 3 B C D A 2x 2y B C D A 2x 5y 9x 3x 5y 9x 2x 8xy 6y 81x4 B D 5xy 6y 81x4 3y 3x 2x x 2y 2yx y 3x 3 5 2 5 yx 3xy x 2 2x x 2 3y 2y 3x 10x 3y y x 5 15 6x 10x 15x 6y 10y 2x 3 2y 5 4 6 2 2 A C 6 A 3x 4 2 C A b 1 B 3b 2b 3 6b 3b 2b 4 6b 3b D 5a 3b x 9 x 2x x 3 66 2 2x 6 X 2 2x 3 b 2 a 4b Sab 3b 6a 4b b 3 5ba 5a 4b b 3 5ba 3a 5b b a B D 2b 3 b 2b 3 2b 2 b 2b 3 B D 3b a 25a b 3a 12b 15b a 6 x 2x x 3 3x 9x 2 2 x 3