Ответ:
5. 79/84
Пошаговое объяснение:
1) 1. 3/14 + 11/21 = 1. 9/42 + 22/42 = 1. 31/42
2) 4. 5/12 - 2 = 2. 5/12
3) 5. 1/2 - 1. 31/42 = 5. 21/42 - 1. 31/42 = 4. 53/42 - 1. 31/42 = 3. 22/42 = 3. 11/21
4) 3. 11/21 + 2. 5/12 = 3. 44/84 + 2. 35/84 = 5. 79/84
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Answers & Comments
Ответ:
5. 79/84
Пошаговое объяснение:
1) 1. 3/14 + 11/21 = 1. 9/42 + 22/42 = 1. 31/42
2) 4. 5/12 - 2 = 2. 5/12
3) 5. 1/2 - 1. 31/42 = 5. 21/42 - 1. 31/42 = 4. 53/42 - 1. 31/42 = 3. 22/42 = 3. 11/21
4) 3. 11/21 + 2. 5/12 = 3. 44/84 + 2. 35/84 = 5. 79/84