Given X-Y / xy = 2, find the fraction 7x-5xy-7y / 5x-5y

Given X-Y / xy = 2, find the fraction 7x-5xy-7y / 5x-5y

Given X-Y / xy = 2, find the fraction 7x-5xy-7y / 5x-5y
The results are as follows
x-y/xy=2
x-y=2xy
From 7x-5xy-7y / 5x-5y,
==7x-5xy-7y/5(x-y)
==7(x-y)-5xy/10xy
==14xy-5xy/10xy
==9xy/10xy
==9/10
==0.9