ײ + ×y ______ 6ײ + 5× – y²

(x^2 + xy) / (6x^2 + 5x – y^2)
x(x+y) / ((6x + 6y)(6x – y) : 6)
x(x+y) / (x+y) (6x-y)
x / (6x -y)