4 11/45 + (3 14/15 + 5 2/45) = 4 11/45 + 5 2/45 + 3 + 14/15 = 12 13/45 + 42/45 =
= 12 55/45 = 13 10/45 = 13 2/9
Пошаговое объяснение:
А)1099,1100,1101,1102,1103,1104,1105
Б)1998,1999,2001,2002,2003,2004,2005,2006,2007......2110
В)2997,2998,2999,3000,3001,3002,3003,3004,3005.