math
posted by Aly .
Okay 5/9 + 7/9
I know you change the denominator so
5/6 = 15/18 or 3/18
7/9 = 14/18 or 2/18
which one?

math 
Ms. Sue
You only change the denominator when they are not the same. You don't need to change anything about those fractions  except simplify your answer.

math 
Aly
I know I put them wrong I mean 5/6 + 7/9

math 
Ms. Sue
5/6 = 15/18
7/9 = 14/18 
math 
Aly
which is 29/18 and so I change it to a mixed number?

math 
Ms. Sue
Right. And then simplify.

math 
Aly
is it 1 11/18???

math 
Ms. Sue
Right. :)
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