
1/9 + 4/9 = 5/9
1/5 + 1/5 = 2/5
2/8 + 2/8 = 4/8 = (2/4)
4/8 + 3/8 = 7/8
1/8 + 2/8 = 3/8
1/5 + 1/4 = 9/20 = (3/10)
1/10 + 1/6 = 16/60 = (8/30)
1/4 + 1/2 = 12/20 = (6/10)
1/4 + 1/7 = 11/28
1/2 + 1/6 = 8/12 = (4/6)
1/11 + 1/3 = 14/33
1/7 + 1/5 = 12/35
1/2 + 1/9 = 11/18
1/10 + 1/12 = 22/120 = (11/60)
1/11 + 1/6 = 17/66
1/9 + 1/6 = 15/54
1/6 + 1/8 = 14/48 = (7/24)
1/4 + 1/12 = 16/48 = (8/24)
1/3 + 1/2 = 5/6
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