Ответ:
Пошаговое объяснение:
А)
1) 5. 7/12 - 1. 4/15 + 3/4 =
5. 35/60 - 1. 16/60 + 45/60 = 4. 19/60 + 45/60 = 4. 64/60 = 5. 4/60 = 5. 1/15
2) 13 - 5. 1/15 = 12. 15/15 - 5. 1/15 = 7. 14/15
В)
= 9. 22/36 - 5. 27/36 + 2. 28/36 - 1. 15/36 =
8. 58/36 - 5. 27/36 + 2. 28/36 - 1. 15/36 =
3. 31/36 + 2. 28/36 - 1. 15/36 = 4. 44/36 = 5. 8/36 = 5. 2/9
С)
1) 6. 1/4 - 4. 1/8 = 6. 2/8 - 4. 1/8 = 2. 1/8
2) 2. 1/8 * 4 = 33/8 * 4 = 33/2 * 1 = 33/2 = 16. 1/2
3) 3. 1/3 : 2. 1/2 = 10/3 : 5/2 = 10/3 * 2/5 = 20/15 = 4/3 = 1. 1/3
4) 16. 1/2 + 1. 1/3 = 16. 3/6 + 1. 2/6 = 17. 5/6
Д)
1) 19. 2/5 + 28. 9/40 =
19. 16/40 + 28. 9/40 =
47. 25/40 = 47. 5/8
2) 47. 5/8 : 15. 7/8 = 381/8 : 127/8 = 381/8 * 8/127 = 381/127 = 3
3) 3 + 24. 3/8 = 27. 3/8
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Answers & Comments
Ответ:
Пошаговое объяснение:
А)
1) 5. 7/12 - 1. 4/15 + 3/4 =
5. 35/60 - 1. 16/60 + 45/60 = 4. 19/60 + 45/60 = 4. 64/60 = 5. 4/60 = 5. 1/15
2) 13 - 5. 1/15 = 12. 15/15 - 5. 1/15 = 7. 14/15
В)
= 9. 22/36 - 5. 27/36 + 2. 28/36 - 1. 15/36 =
8. 58/36 - 5. 27/36 + 2. 28/36 - 1. 15/36 =
3. 31/36 + 2. 28/36 - 1. 15/36 = 4. 44/36 = 5. 8/36 = 5. 2/9
С)
1) 6. 1/4 - 4. 1/8 = 6. 2/8 - 4. 1/8 = 2. 1/8
2) 2. 1/8 * 4 = 33/8 * 4 = 33/2 * 1 = 33/2 = 16. 1/2
3) 3. 1/3 : 2. 1/2 = 10/3 : 5/2 = 10/3 * 2/5 = 20/15 = 4/3 = 1. 1/3
4) 16. 1/2 + 1. 1/3 = 16. 3/6 + 1. 2/6 = 17. 5/6
Д)
1) 19. 2/5 + 28. 9/40 =
19. 16/40 + 28. 9/40 =
47. 25/40 = 47. 5/8
2) 47. 5/8 : 15. 7/8 = 381/8 : 127/8 = 381/8 * 8/127 = 381/127 = 3
3) 3 + 24. 3/8 = 27. 3/8