Ответы на вопрос:
1. 2/3+5/8= 2*8/24 + 5*3/24= 16+15/24= 31/24= 1 7/24
2. 7/12-3/8= 7*2/24 - 3*3/24= 12/24 - 9/24= 12-9/24= 3/24= 1/8
4. 6/35+3/10= 6*2/70+3*7/70= 12/70+21/70= 33/70
5. 8/15-4/9= 8*3/45 - 4*5/45= 24/45 - 20/45= 24-20/45= 4/45
2. 7/12-3/8= 7*2/24 - 3*3/24= 12/24 - 9/24= 12-9/24= 3/24= 1/8
4. 6/35+3/10= 6*2/70+3*7/70= 12/70+21/70= 33/70
5. 8/15-4/9= 8*3/45 - 4*5/45= 24/45 - 20/45= 24-20/45= 4/45
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