Adding with like denominators: 
Your fraction addition statement is: 3\6 + 2\6
1) Look at the numerators and only focus on them for now. You are doing this because the denominator is the same and you don't need to work on it (both fractions have the same amount of equal parts in the whole and so will the answer)
2) Add the numerators
3) Your new number is your new numerator for the sum of this fraction statement
4) Your last step is to place your denominator back in the sum.
5) That's how you add with the same denominators :)

Subtracting with like denominators:
You will do the same steps as "adding with like denominators". The only difference is that you'll be subtracting the numerators, not adding it.
Your fraction addition statement is: 3\6 - 2\6
1) Look at the numerators and only focus on them for now. You are doing this because the denominator is the same and you don't need to work on it (both fractions have the same amount of equal parts in the whole and so will the answer)
2) Subtract the numerators
3) Your new number is your new numerator for the answer of this fraction statement
4) your last step is to place your denominator back in the answer
5) That's how you subtract with the same denominators :)

TRY THESE!!

1) 8/10-5/8              4) 9/9-7/9 

2) 3/7+3/7               5) 6/12-5/12

3)1/6+5/6                6) 12/25+9/25