2 целых 1/4 + 1целых 5/12 = 9/4 + 17/12 = 27/12 + 17/12 = 44/12 = 11/3 = 3 целых 2/3
б) 2 целых 11/15 -1 целых 2/5 = 41/15 - 7/5 = 41/15 - 21/15 = 20/15 = 4/3 = 1 целых 1/3
2 целых 1/4 + 1целых 5/12 = 9/4 + 17/12 = 27/12 + 17/12 = 44/12 = 11/3 = 3 целых 2/3
б) 2 целых 11/15 -1 целых 2/5 = 41/15 - 7/5 = 41/15 - 21/15 = 20/15 = 4/3 = 1 целых 1/3