Ответы
Ответ:
Пошаговое объяснение:
Р.
1) 3. 2/5 + 1. 7/10 =
3. 4/10 + 1. 7/10 =
4. 11/10 = 5. 1/10
2) 5. 1/10 * 1. 3/17 =
51/10 * 20/17 = 3/1 * 2/1 = 6/1 = 6
3) 2. 7/23 - 1. 45/46 =
2. 14/46 - 1. 45/46 =
1. 60/46 - 1. 45/46 = 15/46
4) 15/46 * 69/80 = 3/2 * 3/16 = 9/32
5) 6 - 9/32 = 5. 32/32 - 9/32 = 5. 23/32
6) 5. 23/32 * 1. 1/3 =
183/32 * 4/3 = 61/8 * 1/1 =
61/8 = 7. 5/8
Ответ: 7. 5/8
С.
1) 1. 2/13 * 2. 1/10 =
15/13 * 21/10 = 3/13 * 21/2 = 63/26 = 2. 11/26
2) 2/13 * 13. 1/2 = 2/13 * 27/2 = 27/13 = 2. 1/13
3) 2. 11/26 - 2. 1/13 =
2. 11/26 - 2. 2/26 = 9/26
4) 3. 11/18 * 9/26 =
65/18 * 9/26 = 65/2 * 1/26 = 65/52 = 1. 13/52 = 1. 1/4
5) 4. 2/3 * 3. 3/4 =
14/3 * 15/4 = 7/1 * 5/2 = 35/2 = 17. 1/2
6) 6/7 * 7. 14/15 =
6/7 * 119/15 = 2/1 * 17/5 =
34/5 = 6. 4/5
7) 17. 1/2 - 6. 4/5 =
17. 5/10 - 6. 8/10 =
16. 15/10 - 6. 8/10 =
10. 7/10
8) 5 * 10. 7/10 = 5 * 107/10 = 1 * 107/2 = 107/2 = 53. 1/2
9) 1. 1/4 + 53. 1/2 =
1. 1/4 + 53. 2/4 = 54. 3/4
Ответ: 53. 3/4