Mrs. Smith has 28 6th graders and 35 7th graders if she wants to break two grades into identical groups without any students left over how many students will be in each group

I did the math for you the answer is 3 groups with 21 people in each groups

28+25=63

1 1 1 1

1 1 1 1

1 1 1 1. 21 first group

1 1 1 1

1 1 1 1

1

1 1 1 1

1 1 1 1. 21 second groups

1 1 1 1

1 1 1 1

1 1 1 1

1

1 1 1 1

1 1 1 1

1 1 1 1. 21 third groups

1 1 1 1

1 1 1 1

1

21+21+21=63

or u can 63:3=21