28 2/7 : 12 = 198/7 : 12 = 198/7 * 1/12 =
= 33/14 = 2 5/14 м - длина каждой части
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28 2/7 : 12 = 198/7 : 12 = 198/7 * 1/12 =
= 33/14 = 2 5/14 м - длина каждой части