Выполните вычисления:
а)4+5 1/4, в)1 3/5+2 2/3, д)3-5/7, ж)3 2/5-3/5,
б)1 2/9+3 1/3, г)5 3/4-2 , е)4-1 7/9, з)4 1/3-1 1/2.
а)4+5 1/4, в)1 3/5+2 2/3, д)3-5/7, ж)3 2/5-3/5,
б)1 2/9+3 1/3, г)5 3/4-2 , е)4-1 7/9, з)4 1/3-1 1/2.
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Б) = 4 5/9