2 целых 1/52 × 26/49 - 11 целых 5/11 ÷3 целых 3/7= решение

2 целых 1/52 × 26/49 - 11 целых 5/11 ÷3 целых 3/7=-2 83 /308.1) 2 1 /52 × 26/ 49 = 1 + 2·52/ 52 × 26 /49 = 105/ 52 × 26/ 49 = 105·26 /52·49 = 2730/ 2548 = 15·182/ 14·182 = 15/ 14 = 1 + 1·14 /14 = 1 1/ 14 2) 11 5 /11 ÷ 3 / 3 7 = 5 + 11·11/ 11 ÷ 3 + 3·7/ 7 = 126/ 11 ÷ 24/ 7 = 126/ 11 × 7 /24 = 126·7/ 11·24 = 882/ 264 = 147·6 /44·6 = 147/ 44 = 15 + 3·44/ 44 = 3 15/ 44 3) 1 1/ 14 - 3 15/ 44 = -2 + 1 /14 - 15/ 44 = -2 - 1·22/ 14·22 - 15·7/ 44·7 = -2 + 22 /308 - 105/ 308 = -2 + 22 - 105 /308 = -2 83 /308