2 5/7 + 1 2/5 + 3 2/7 , I change alll the denominators to 70 right?

Answer 1

The least common denominator is 35.

Answer 2

and the final answer would be 6 and 2/5

Answer 3

Your answer is correct. Good job!
2 5/7 + 1 2/5 + 3 2/7
2 25/35+ 1 14/35 + 3 10/35
6 49/35= 6 14/35= 6 2/5

Answer 4

Your fraction is correct. Your whole number is 1 off.

Answer 5

Oh yes, Ms. Sue is right. I didn't even realize this as I did the steps. When going from 6 49/35, it doesn't become 6 14/35 because 49/35 is more than one..