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

Question

asked May 15, 2019 125k views

2 Answers

Bob Desaunois · Answer 1 · 2019-05-20T01:55:27+0000

Answer:

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.