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Автор - avramenkonikita2008

х:3=1/7: 1 1/14скажите плиз​

Ответ

Автор - matilda17562

Ответ:

2/5.

Пошаговое объяснение:

х : 3 = 1/7 : 1 1/14

1 1/14•х = 3•1/7

1 1/14•х = 3/7

х = 3/7 : 1 1/14

х = 3/7 • 14/15

х = (3•14)/(7•15)

х = (1•2)/(1•5)

х = 2/5

Проверка:

2/5 : 3 = 1/7 : 1 1/14

2/15 = 1/7•14/15

2/15 = 2/15 - верно.

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