Question

Сколько будкт 2целых 5/8- 2целых 1/4 11/12 - 13/24 . 12/15 - 14/15. 4/12+5/12 . 5/8-5/24 . 1 целая 13/20 -9/10 . 23/18-7/9. 1/7 + 11/21 . 1 целая 1/6-3/10. 5/6-1/15 . 3/7 + 17/42 . 1/2 - 3/10. 11/15+1/6 9/10

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Давайте решим каждое из данных арифметических выражений:

1. 2 целых 5/8 - 2 целых 1/4 = 2 - 2 = 0

2. 11/12 - 13/24 = (112)/(122) - 13/24 = 22/24 - 13/24 = (22-13)/24 = 9/24 = 3/8

3. 12/15 - 14/15 = (12-14)/15 = -2/15

4. 4/12 + 5/12 = (4+5)/12 = 9/12 = 3/4

5. 5/8 - 5/24 = (15-5)/24 = 10/24 = 5/12

6. 1 целая 13/20 - 9/10 = 1 - 9/10 = 1 - (92)/(102) = 1 - 18/20 = (20-18)/20 = 2/20 = 1/10

7. 23/18 - 7/9 = (232)/(182) - 7/9 = 46/36 - 28/36 = (46-28)/36 = 18/36 = 1/2

8. 1/7 + 11/21 = (3/21) + (11/21) = 14/21 = 2/3

9. 1 целая 1/6 - 3/10 = 1 - 3/10 = 1 - (32)/(102) = 1 - 6/20 = (20-6)/20 = 14/20 = 7/10

10. 5/6 - 1/15 = (25/30) - (2/30) = 23/30

11. 3/7 + 17/42 = (18/42) + (17/42) = 35/42 = 5/6

12. 1/2 - 3/10 = (5/10) - (3/10) = 2/10 = 1/5

13. 11/15 + 1/6 = (22/30) + (5/30) = 27/30 = 9/10

Итак, результаты вычислений:

1. 2 целых 5/8 - 2 целых 1/4 = 0
2. 11/12 - 13/24 = 3/8
3. 12/15 - 14/15 = -2/15
4. 4/12 + 5/12 = 3/4
5. 5/8 - 5/24 = 5/12
6. 1 целая 13/20 - 9/10 = 1/10
7. 23/18 - 7/9 = 1/2
8. 1/7 + 11/21 = 2/3
9. 1 целая 1/6 - 3/10 = 7/10
10. 5/6 - 1/15 = 23/30
11. 3/7 + 17/42 = 5/6
12. 1/2 - 3/10 = 1/5
13. 11/15 + 1/6 = 9/10