1)4 3/5+2 5/7+5 9/35 = 23/5+19/7+184/35 = 440/35 =12 20/35 = 12 4/7.
2)1 2/36+6 4/15+8 17/45 = 5/3+94/15+377/45 = 734/45 = 16 14/45.
3) 8 3/40+12 11/20+6 7/80 = 323/40+251/20+487/80 = 2137/80 = 26 57/80.
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1)4 3/5+2 5/7+5 9/35 = 23/5+19/7+184/35 = 440/35 =12 20/35 = 12 4/7.
2)1 2/36+6 4/15+8 17/45 = 5/3+94/15+377/45 = 734/45 = 16 14/45.
3) 8 3/40+12 11/20+6 7/80 = 323/40+251/20+487/80 = 2137/80 = 26 57/80.