Ответ:
-8. 193/300
Пошаговое объяснение:
1) 2/5 * (-2,5) = 2/5 * (-25/10) = -50/50 = -1
2) 2. 5/6 - (-1) = 2. 5/6 + 1 = 3. 5/6
3) -1,61 - 3. 5/6 = -1. 61/100 - 3. 5/6 = -1. 366/600 - 3. 500/600 = -4. 866/600 = -4. 433/300 = -5. 133/300
4) -5. 133/300 - 3. 1/5 = -5. 133/300 - 3. 60/300 = -8. 193/300
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Ответ:
-8. 193/300
Пошаговое объяснение:
1) 2/5 * (-2,5) = 2/5 * (-25/10) = -50/50 = -1
2) 2. 5/6 - (-1) = 2. 5/6 + 1 = 3. 5/6
3) -1,61 - 3. 5/6 = -1. 61/100 - 3. 5/6 = -1. 366/600 - 3. 500/600 = -4. 866/600 = -4. 433/300 = -5. 133/300
4) -5. 133/300 - 3. 1/5 = -5. 133/300 - 3. 60/300 = -8. 193/300