457. Найдите значение сумм:
1)2 1/6+2 5/12;
2)9 3/8+7 5/6;
3)5 1/10+8 3/8;
4)6 2/15+42 18/25;
5)5 3/18+18 1/27;
6)9 3/20+7 4/15;
7)2 19/44+5 52/66;
8)38 21/26+14 34/39;
9)6 11/12+ 3 15/16.
Решите пожалуйста даю 25 балл​
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