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Ответ:

г) 4/5 : 5/8 - 4/5*24/25 + 1/25 : 5/4 = 4/5 * 8/5 - 4/5*24/25 + 1/25 * 4/5 = 4/5(8/5 - 24/25 + 1/25) = 4/5(40/25 - 24/25 + 1/25) = 4/5 * 17/25 = (4*17) /(5*25) = 68/125