August 2022 1 17 Report
найдите значение выражения

а)2 целых 2/5a + b, если а = 2 целых 1/12, b = 3 целых 27/40

б) 8 целых 3/4 ( а+ b ),если а = 2 целых 1/7, b = 1 целая 1/7
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