Ответ:
2,8
Пошаговое объяснение:
1 4/7 = 11/7
1 2/13 = 15/13
4 1/3 = 13/3
11/7 × (-7/5) - (-15/13) × 13/3 = -(11×7)/(7×5) + (15×13)/(13×3) = -11/5 + 15/3 = -2 1/5 + 5 = -2,2 + 5 = 2,8
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Answers & Comments
Ответ:
2,8
Пошаговое объяснение:
1 4/7 = 11/7
1 2/13 = 15/13
4 1/3 = 13/3
11/7 × (-7/5) - (-15/13) × 13/3 = -(11×7)/(7×5) + (15×13)/(13×3) = -11/5 + 15/3 = -2 1/5 + 5 = -2,2 + 5 = 2,8