а) 3 целых 5/8 + 2 целых 5/7 = 3 + 2 + 5/8 + 5/7 = 5 + 5 + 40/56 + 40/56 = 10 + 80/56 = 10 + 1 24/56 = 10 12/28
б) 3 целых 4/5 - 3 целых 8/15 = 3 - 3 + 4/5 - 8/15 = 4/5 - 8/15 = 12/15 - 8/15 = 4/15
в) 4 целых - 2 целых 3/8 = 4 - 2 - 3/8 = 2 5/8
г) 7 целых 2/9 + 3 целых 5/6 = 7 + 3 + 2/9 + 5/6 = 10 + 40/54 + 45/54 = 10 + 85/54 = 10 31/54
д) 9 целых 7/12 - 1.8 = 9 - 1 - 0.8 = 7.2
е) 23 целых 5/16 - 5 целых 3/8 = 23 - 5 + 5/16 - 3/8 = 18 + 5/16 - 6/16 = 18 + 5 - 6/16 = 23 - 6/16 = 23 - 3/8 = 22 5/8
а) 3 целых 5/8 + 2 целых 5/7 = 3 + 2 + 5/8 + 5/7 = 5 + 5 + 40/56 + 40/56 = 10 + 80/56 = 10 + 1 24/56 = 10 12/28
б) 3 целых 4/5 - 3 целых 8/15 = 3 - 3 + 4/5 - 8/15 = 4/5 - 8/15 = 12/15 - 8/15 = 4/15
в) 4 целых - 2 целых 3/8 = 4 - 2 - 3/8 = 2 5/8
г) 7 целых 2/9 + 3 целых 5/6 = 7 + 3 + 2/9 + 5/6 = 10 + 40/54 + 45/54 = 10 + 85/54 = 10 31/54
д) 9 целых 7/12 - 1.8 = 9 - 1 - 0.8 = 7.2
е) 23 целых 5/16 - 5 целых 3/8 = 23 - 5 + 5/16 - 3/8 = 18 + 5/16 - 6/16 = 18 + 5 - 6/16 = 23 - 6/16 = 23 - 3/8 = 22 5/8