Math
posted by John .
Please show work.
9 1/10 + 7 2/5

11 5/10
9 1/10 + 7 2/5
you have to find the common denominators of 1/10 and 2/5 which is 10 so you leave 1/10 the same and multiply 2/5 with 2 each to get 4/10 then you add 1/10 + 4/10 which is equal to 5/10. now that you got that just add the 9+7 you get 11 so your answer is 11 5/10 
Reduce 5/10 to 1/2 so your answer is 11 1/2