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Автор - gavanna2006

Найдите значение выражения:
а) 3/7 : 9/14
б) 11 2/5 : 3 4/5
в) 4 8/9 : 0,6
г) 1 9/11 * ( 3 2/3 : 1 1/9)
СРОЧНО!
ДАЮ 45 БАЛЛОВ!

Ответ

Автор - alenapresnova94
а) 3/7:9/14 = 3/7×14/9 = 2/3
б) 11 2/5 : 3 4/5 = 57/5 : 19/5 = 57/5 × 5/19 = 3
в) 4 8/9 : 0.6 = 44/9 : 6/10 = 44/9 × 10/6 = 440/54 = 8 8/54 = 8 4/27
г) 1 9/11 × (3 2/3 : 1 1/9) = 1 9/11 × (11/3:10/9) =
1 9/11 × (11/3×9/10) = 20/11×33/10 = 6

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