Ответ:
1 5/18
Пошаговое объяснение:
А = 1/3 + 1/4 + 5/12 = 4/12 + 3/12 + 5/12 = 12/12 = 1
В = А + 7/8 = 1 + 7/8 = 1 7/8
4/9 * (А + В) = 4/9 * (1 + 1 7/8) = 4/9 * 2 7/8 =
4/9 * 23/8 = 1/9 * 23/2 = 23/18 = 1 5/18
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Answers & Comments
Ответ:
1 5/18
Пошаговое объяснение:
А = 1/3 + 1/4 + 5/12 = 4/12 + 3/12 + 5/12 = 12/12 = 1
В = А + 7/8 = 1 + 7/8 = 1 7/8
4/9 * (А + В) = 4/9 * (1 + 1 7/8) = 4/9 * 2 7/8 =
4/9 * 23/8 = 1/9 * 23/2 = 23/18 = 1 5/18