Предмет: Математика, автор: nyajjjjf

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Нужно решить задачу и написать короткое условие :

Дошку розрізали на три частини. Довжина однієї частини 1,1/6 м. Вона коротша від другої на 3/8м і довша третьої на 5/12 м. Знайти довжину дошки.

Ответы

Автор ответа: iramazurk
2

Пошаговое объяснение:

1 часть доски = 1 1/6 м

2 часть доски = ? м, на 3/8 м > 1 части доски

3 часть доски = ? м, на 5/12 < 1 части доски

1) 1 1/6 + 3/8 = 1 4/24 + 9/24 = 1 13/24 (м) - длина 2 части доски

2) 1 1/6 - 5/12 = 1 2/12 - 5/12 = 14/12 - 5/12 = 9/12 = 3/4 (м) - длина 3 части доски

3) 1 1/6 + 1 13/24 + 3/4 = 1 4/24 + 1 13/24 + 18/24 = 2 35/24 = 3 11/24 (м) - длина всей доски


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