What is equivalent to xy/a - 1/b

The steps in achieving the answer for the simplification are as follows:

1. The least common multiple of the denominators of the terms of the given is ab.

2. Multiply the expression with ab, such that,

(xy/a - 1/b) x (ab)

3. Simplifying,

xyb - a

4. Writing ab as the denominator of the expression in number, we get the final answer which is equal to,

(xyb - a) / ab