3 + 1/7 = 1 1/7; 9 13/16 + 23 = 11 1/4; 6 5/16 + 2 3/16 = 8 1/2;

6 + 5 2/9 = 11 2/9; 4 2/6 + 2 3/6 = 6 5/6; 2 5/22 + 8 15/22 = 10 10/11

1) 3 + 1/7= 3/1 + 1/7= 21/7 + 1/7= 22/7= 1 1/7;

2) 9 13/16 + 23= 9 13/16 + 23/1= 9 13/16 + 23/16= 9 36/16= 11 4/16= 11 1/4;

3) 6 5/16 + 2 3/16= 8 8/16= 8 1/2

4) 6 + 5 2/9= 11 2/9

5) 4 2/6 + 2 3/6= 6 5/6

6) 2 5/22 + 8 15/22= 10 20/22= 10 10/22