Пошаговое объяснение:
1) -2,5 - 1. 5/6 = -2. 5/10 - 1. 5/6 = -2. 15/30 - 1. 25/30 = -3. 40/30 = -4. 10/30 = -4. 1/3
2) -4. 1/3 : 1. 4/9 = -13/3 : 13/9 = -13/3 * 9/13 = -9/3 = -3
3) 3. 5/9 * (-2. 1/4) = 32/9 * (-9/4) = -32/4 = -8
4) -3 - 8 = -11
ответ: -11
1) -2,5 - 1 5/6 = -2 5/10 - 1 5/6 = -2 15/30 - 1 25/30 = -4 1/3
2) -4 1/3 : 1 4/9 = -13/3 : 13/9 = -13/3 * 9/13 = -9/3 = -3
3) 3 5/9 * (-2 1/4) = 32/9 * (-9/4) = -8
Пошаговое объяснение:
1) -2,5 - 1. 5/6 = -2. 5/10 - 1. 5/6 = -2. 15/30 - 1. 25/30 = -3. 40/30 = -4. 10/30 = -4. 1/3
2) -4. 1/3 : 1. 4/9 = -13/3 : 13/9 = -13/3 * 9/13 = -9/3 = -3
3) 3. 5/9 * (-2. 1/4) = 32/9 * (-9/4) = -32/4 = -8
4) -3 - 8 = -11
ответ: -11
1) -2,5 - 1 5/6 = -2 5/10 - 1 5/6 = -2 15/30 - 1 25/30 = -4 1/3
2) -4 1/3 : 1 4/9 = -13/3 : 13/9 = -13/3 * 9/13 = -9/3 = -3
3) 3 5/9 * (-2 1/4) = 32/9 * (-9/4) = -8
4) -3 - 8 = -11
Пошаговое объяснение: