Complex Fraction:
a^2 / b^2 - 1 denominator 1/a + 1/b = a^2 - b^2 / b^2 denominator b+a / ab
= a^2 - b^2 / b^2 * ab / b+a = a(a-b) / b.
But my textbook has the answer a(a-b). So what happened to the denominator b?
I will assume the following:Here is the Complex Fraction:
Numerator= (a^2 / b^2) - 1
Denominator = (1/a + b/a)
Ah; so the expression is as follows...?... the denomitor of the complex fraction is 1 over a + 1 over b (1/a + 1/b).