а) (11/48) + (13/48) / (17/48) = 11/48 + 13/48 + 17/48 = 41/48
б) (19/55) + (18/55) + (12/55) = 19/55 + 18/55 + 12/55 = 49/55
в) (25/64) + (17/64) + (15/64) = 25/64 + 17/64 + 15/64 = 57/64
г) (23/69) + (38/69) + (7/69) = 23/69 + 38/69 + 7/69 = 68/69
д) (28/43) + (52/43) + (19/43) = 28/43 + 52/43 + 19/43 = 99/43
е) (17/45) + (11/45) + (23/45) = 17/45 + 11/45 + 23/45 = 51/45 = 17/15
ж) (1/45) + (2/45) + (7/45) = 1/45 + 2/45 + 7/45 = 10/45 = 2/9
з) (13/44) + (15/44) + (17/44) = 13/44 + 15/44 + 17/44 = 45/44
и) (16/77) + (8/77) + (4/77) = 16/77 + 8/77 + 4/77 = 28/77 = 4/11
а) (11/48) + (13/48) / (17/48) = 11/48 + 13/48 + 17/48 = 41/48
б) (19/55) + (18/55) + (12/55) = 19/55 + 18/55 + 12/55 = 49/55
в) (25/64) + (17/64) + (15/64) = 25/64 + 17/64 + 15/64 = 57/64
г) (23/69) + (38/69) + (7/69) = 23/69 + 38/69 + 7/69 = 68/69
д) (28/43) + (52/43) + (19/43) = 28/43 + 52/43 + 19/43 = 99/43
е) (17/45) + (11/45) + (23/45) = 17/45 + 11/45 + 23/45 = 51/45 = 17/15
ж) (1/45) + (2/45) + (7/45) = 1/45 + 2/45 + 7/45 = 10/45 = 2/9
з) (13/44) + (15/44) + (17/44) = 13/44 + 15/44 + 17/44 = 45/44
и) (16/77) + (8/77) + (4/77) = 16/77 + 8/77 + 4/77 = 28/77 = 4/11