Question

What is the common denominator of 1/a+1/b in the complex fraction 1/a-1/b/1/a+1/b

Answer 1

Answer: is D

Explanation:

Answer 2

common denominator is ab.

Explanation:

Given :
`(1)/(a) +(1)/(b)` ; complex fraction
`((1)/(a) - (1)/(b))/((1)/(a)+(1)/(b))`.

To find : What is the common denominator.

Solution : We have given that
`((1)/(a) - (1)/(b))/((1)/(a)+(1)/(b))`.

For this, we subtract fractions in the numerator and the sum of fractions in the denominator.

`((b-a)/(ab))/((b+a)/(ab))`.

We observe that the common denominator is given by the product: ab

Therefore, common denominator is ab.