ANSWER AND GET 10 POINTS + ANSWERED ?

Ok so I'm in home studies and I have an algebra book right? Ok so I'm on this mixed review section and one of the problems is: 5 1/2 + 3 3/5 The answer in teh back says it's supposed to be 9 1/10 But I keep getting 8 7/10 or 8 4/5 Plz help me =[ and tell me how to do these kinds of... show more Ok so I'm in home studies and I have an algebra book right? Ok so I'm on this mixed review section and one of the problems is:

5 1/2
+
3 3/5


The answer in teh back says it's supposed to be 9 1/10

But I keep getting 8 7/10 or 8 4/5

Plz help me =[

and tell me how to do these kinds of problems since it's hard....
7 minutes ago - 3 days left to answer.
Additional Details
5 minutes ago

Also, whoever answers first or helps me, get sthe 10 points and I'll answer your question if you have one.
9 answers 9