1) 4 3/5 + 2 5/7 + 5 9/35 = 11 7/35 + 2 25/35 + 5 9/35 = 17 41/35
2) 1 2/3 + 6 4/15 + 8 17/45 = 1 10/15 + 6 4/15 + 8 17/45 = 15 31/45
3) 8 3/40 + 12 11/20 + 6 7/80 = 8 3/40 + 12 22/40 + 6 7/80 = 26 32/80 = 26 2/5
4) 5 7/20 + 20 4/15 + 12 11/60 = 5 7/20 + 20 16/60 + 12 11/60 = 37 34/60 = 37 17/30
5) 5 2/5 + 19 9/10 + 4 33/50 = 5 2/5 + 19 18/10 + 4 33/50 = 28 33/50
6) 31 7/9 + 4 11/27 + 35 43/54 = 31 7/9 + 4 11/27 + 35 43/54 = 71 62/54 = 72 8/54 = 72 4/27
1) 4 3/5 + 2 5/7 + 5 9/35 = 11 7/35 + 2 25/35 + 5 9/35 = 17 41/35
2) 1 2/3 + 6 4/15 + 8 17/45 = 1 10/15 + 6 4/15 + 8 17/45 = 15 31/45
3) 8 3/40 + 12 11/20 + 6 7/80 = 8 3/40 + 12 22/40 + 6 7/80 = 26 32/80 = 26 2/5
4) 5 7/20 + 20 4/15 + 12 11/60 = 5 7/20 + 20 16/60 + 12 11/60 = 37 34/60 = 37 17/30
5) 5 2/5 + 19 9/10 + 4 33/50 = 5 2/5 + 19 18/10 + 4 33/50 = 28 33/50
6) 31 7/9 + 4 11/27 + 35 43/54 = 31 7/9 + 4 11/27 + 35 43/54 = 71 62/54 = 72 8/54 = 72 4/27