Question

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Combine like terms 5/6a - 5/6b + 1/3a

a. 7/6a - 5/6b

b. 1/3ab

c. 5/18 a - 5/6b

d. 1/3a

Answer 1

5/6a - 5/6b + 1/3a

1/3 x 2/2 = 2/6

5/6a + 2/6a = 7/6a

7/6a - 5/6a = 2/6a

2/6a = 1/3a

d. 1/3a is your answer 

hope this helps 

Answer 2

A. 7/6a - 5/6b would be the answer
add all like terms = 5/6 + 2/6 (Change 1/3 to 2/6 so the denominators are the same) which is 7/6. 
You cannot add 5/6b and 7/6a because they are not like terms.
Your final answer would be 7/6a - 5/6b
Hope this helps!!