Решите пример................................

Question

Решите пример................................

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Answer 1

2 8/5 - (1 3/10 + 2/5) = 1 9/10 или 1,9
1) 1 3/10 + 2/5 = 1 3/10 + 4/10 = 1 7/10
2) 2 8/5 - 1 7/10 = 2 16/10 - 1 7/10 = 1 9/10