Ответ: 2 3/4-(-1 1/2)+(-5/6)-(-3/8)-4 2/3=2 3/4+1 1/2-5/6+3/8-4 2/3=2 18/24+1 12/24-20/24+9/24-4 16/24=-1 21/24=-1 7/8
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Ответ: 2 3/4-(-1 1/2)+(-5/6)-(-3/8)-4 2/3=2 3/4+1 1/2-5/6+3/8-4 2/3=2 18/24+1 12/24-20/24+9/24-4 16/24=-1 21/24=-1 7/8