Ответ:
- 6 5/54.
Объяснение:
3 8/13 : (1 5/7 - 2 4/13) = - 6 5/54.
1. 1 5/7 - 2 4/13 = - (2 4/13 - 1 5/7) = - (2 28/91 - 1 65/91) = - (1 119/91 - 1 65/91) = -54/91.
2. 3 8/13 : (-54/91) = - 47/13 : 54/91 = - (47•91)/(13•54) = - (47•7)/(1•54) = - 329/54 = - 6 5/54.
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Verified answer
Ответ:
- 6 5/54.
Объяснение:
3 8/13 : (1 5/7 - 2 4/13) = - 6 5/54.
1. 1 5/7 - 2 4/13 = - (2 4/13 - 1 5/7) = - (2 28/91 - 1 65/91) = - (1 119/91 - 1 65/91) = -54/91.
2. 3 8/13 : (-54/91) = - 47/13 : 54/91 = - (47•91)/(13•54) = - (47•7)/(1•54) = - 329/54 = - 6 5/54.