Chlorineid
Answered

a+b/4 - a-b/3

(Addition/subtraction of dissimilar rational expressions)

Sagot :

a+b - a-b
  4      3

LCD is 12 

Rewrite the rational expression.
3 (a+b) - 4 (a-b)
    12         12

3a + 3b - 4a + 4b
        12

Combine like terms in numerator:

3a-4a+3b+4b
    12

Final answer:  -a + 7b
                        12