Ответы на вопрос:
5/9+1 5/7*(4 2/3-2 5/8): 1 3/4=2 5/9 1) 4 2/3-2 5/8=4 16/24-2 15/24=2 1/24 2) 1 5/7*2 1/24=12/7*49/24=7/2=3 1/2 3) 3 1/2: 1 3/4=7/2: 7/4=7/2*4/7=2 4) 5/9+2=2 5/9
5/9 + 1 5/7 * (4 2/3 - 2 5/8) : 1 3/4 = 5/9 + 12/7 * (14/3 - 21/8) : 7/4 = 5/9 + 12/7 * (112-63)/24 : 7/4 = 5/9 + 12/7 * 49/24 : 7/4 = 5/9 + 7/2 * 4/7 = 5/9 + 2 = 2 5/9
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