Выполните сложение рационально:
1) 4 7/45+11 4/13+8 5/26+10 2/5;
2) 3 1/7+5 4/9+13 6/7+3 5/11+10 5/9+11 6/11+4/7
(/ - черта дроби)
1) 4 7/45+11 4/13+8 5/26+10 2/5;
2) 3 1/7+5 4/9+13 6/7+3 5/11+10 5/9+11 6/11+4/7
(/ - черта дроби)
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2) =22/7+4/7+97/7+49/9+95/9*+38/11+127/11=123/7+144/9+165/11=12177/639+11088/693+10395/693=33660/693=340/7=48 4/7