21. 22 Сложите смешанные дроби. a) 112 1 +4- 15 3 e) 2-+3- Найп 3 ₂² +3 + 3 b) 7- 5 10 +) 72 +53 4 c) 5— + 2+2= 12 9) 10,5 +3,3 10_1 10 3 1 d) 45+1- 8 4 3 h) 5-+4- 5 8 12​
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