Ответы на вопрос:
(7 - 1 4/23 * 3 5/6 + 3 1/5 * 3/19) : 2/3 - 2/3 = 3 959/1140 1) 1 4/23 * 3 5/6 = 27/23 * 23/6 = 9/2 = 4 1/2 2) 3 1/5 * 3/19 = 16/5 * 3/19 = 48/95 3) 7 - 4 1/2 = 3 - 1/2 = 2 1/2 4) 2 1/2 + 48/95 = 5/2 + 48/95 = (475+96)/190 = 571/190 = 3 1/190 5) 3 1/190 : 2/3 = 571/190 * 3/2 = 1713/380 = 4 193/380 6) 4 193/380 - 2/3 = 1713/380 - 2/3 = (5139-760)/1140 = 4379/1140 = 3 959/1140
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