Multiplicative inverse of 7/9 is
1
0
9/7
14/18
3/2
2/3
1/3
3
x(x - 1)
x (x + 1)
(x + 1) (x - 1)
x - 1
Find x/y - y/x
x2/y2
x/y
Simplify
1/x-1
x2/x-1
x2
2x + 3
2x - 3
2/5