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

I believe the anwser is ab Sorry if i am wrong i truely am

Answer 2

Answer:

common denominator is ab.

Step-by-step explanation:

Given : $\frac{1}{a} +\frac{1}{b}$ ;  complex fraction  $\frac{\frac{1}{a} - \frac{1}{b}}{\frac{1}{a}+\frac{1}{b}}$.    

To find : What is the common denominator.

Solution : We have given that  $\frac{\frac{1}{a} - \frac{1}{b}}{\frac{1}{a}+\frac{1}{b}}$.    

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

 $\frac{\frac{b-a}{ab}}{\frac{b+a}{ab}}$.

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

Therefore, common denominator is ab.