Помогите,пожалуйста даю 20 баллов!!!
1)4 целых 7/30+1 целая 11/36
9 целых 2/15-3 целых 13/36
1 целая 5/12-61/144

2)23/42+11/56
5 целых 3/11-4 целых 35/66
6 целых 5/18+2 целых 11/21
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