SOS!!!!
9/25×2целых1/7×1целая5/9!!!!!!
(9-2целых2/3×2целых1/7)×21/46!!!!!!
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= 9/25 * 15/7 * 14/9 = (9*15*14) / (25*7*9) = 6/5 = 1 1/5
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= (9 - 8/3 * 15/7) * 21/46 = (9 - 40/7)*21/46 = (9-5 5/7)*21/46 =
= 3 2/7 * 21/46 = 23/7 * 21/46 = 3/2 = 1 1/2
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= (9 - 8/3 * 15/7) * 21/46 = (9 - 40/7)*21/46 = (9-5 5/7)*21/46 =
= 3 2/7 * 21/46 = 23/7 * 21/46 = 3/2 = 1 1/2
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