(((x + y) / 3) + (1 / x)) / (5 + (15 / x)) The best way is to make it one fraction. Multiply by ((3x/3x) / (3x/3x)) to remove the other fractions. ((x(x + y)) + 3(1)) / (5(3x) + 3(15)) (x^2 + xy + 3) / (15x + 45) Then factor to simplify (x^2 + xy + 3) / (3(x + 15))
