Пошаговое объяснение:
1. 1 + 5/12 = 1 5/12 = 17/12 (В)
2. 7/12 + 1 = 1 7/12 = 19/12 (А)
3. 1 - 3/12 = 12/12 - 3/12 = 9/12 (Г)
4. 15/12 - 1 = 1 3/12 - 1 = 3/12 (Д)
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Пошаговое объяснение:
1. 1 + 5/12 = 1 5/12 = 17/12 (В)
2. 7/12 + 1 = 1 7/12 = 19/12 (А)
3. 1 - 3/12 = 12/12 - 3/12 = 9/12 (Г)
4. 15/12 - 1 = 1 3/12 - 1 = 3/12 (Д)
2. 7/12 + 1 = 1 7/12 = 19/12 (А)
3. 1 - 3/12 = 12/12 - 3/12 = 9/12 (Г)
4. 15/12 - 1 = 1 3/12 - 1 = 3/12 (Д)