а) 5/11 и 2/33 = 15/33 и 2/33
б) 2/7 и 5/9 = 18/63 и 35/63
с) 3/8 и 7/12 = 9/24 и 14/24
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а) 5/11 и 2/33 = 15/33 и 2/33
б) 2/7 и 5/9 = 18/63 и 35/63
с) 3/8 и 7/12 = 9/24 и 14/24