Ответ:
Пошаговое объяснение:
( 23/30 + 5/12 ) - 9/20 = (46 + 25/ 60) - 9/20 =71/60 - 9\20 = 71 - 27/ 60 = 44/60 = 11/15
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Ответ:
Пошаговое объяснение:
( 23/30 + 5/12 ) - 9/20 = (46 + 25/ 60) - 9/20 =71/60 - 9\20 = 71 - 27/ 60 = 44/60 = 11/15