Раскройте скобки и найдите значение выражения!
(2 3/7 + 1 5/9) - (1 4/7+5/9)
-(2,77 - 7 2/9) - (0,23-4 7/9)
(2 3/7 + 1 5/9) - (1 4/7+5/9)
-(2,77 - 7 2/9) - (0,23-4 7/9)
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Ответ:
Пошаговое объяснение:
(2 3/7 + 1 5/9) - (1 4/7+5/9) = 2 3/7 + 1 5/9 - 1 4/7 - 5/9 = 6/7 + 1 = 1 6/7
-(2,77 - 7 2/9) - (0,23-4 7/9) = -2,77 + 7 2/9 - 0,23 + 4 7/9 = -3 + 12 = 9