Question

Jill claims that for positive fractions a/b+a/c= a/b+c because the fractions have a common numerator. How do you respond?​

Answer 1

Jill is incorrect.

Explanation:

To add fractions, you need a common denominator, not a common numerator, so Jill is incorrect and her sum of fractions is incorrect.

The correct addition is:

`(a)/(b) + (a)/(c) = (ac)/(bc) + (ab)/(bc) = (ac + ab)/(bc)`