+ equals . First, simplify to and also to . Your problem should look like: + . Second, find the least common denominator of and to get 9. Third, make the denominators the same as the least common denominator (LCD). Your problem should look like: + . Fourth, simplify to get the denominators the same. Your problem should look like: + . Fifth, join the denominators. Your problem should look like: . Sixth, simplify. Your problem should look like: , which is the answer.