Пошаговое объяснение:
1) 4,5 - 2. 1/4 = 4. 5/10 - 2. 1/4 = 4. 10/20 - 2. 5/20 =
2. 5/20 = 2. 1/4
2) 2. 1/4 * (-1. 5/27) = 9/4 * (-32/27) = 1/1 * (-8/3) = -8/3 = -2. 2/3
3) 1,75 : (-1. 1/2) = 1. 75/100 : (-1. 1/2) = 1. 3/4 : (-1. 1/2) = 7/4 : (-3/2) = 7/4 * (-2/3) = -14/12 = -7/6 = -1. 1/6
4) -2. 2/3 + (-1. 1/6) = -2. 2/3 - 1. 1/6 = -2. 4/6 - 1. 1/6 = -3. 5/6
ответ: -3. 5/6
1.
4,5 - 2. 1/4 = 4. 5/10 - 2. 1/4 = 4. 10/20 - 2. 5/20 =2. 5/20 = 2. 1/4
2.
2. 1/4 * (-1. 5/27) = 9/4 * (-32/27) = 1/1 * (-8/3) = -8/3 = -2. 2/3
3.
1,75 : (-1. 1/2) = 1. 75/100 : (-1. 1/2) = 1. 3/4 : (-1. 1/2) = 7/4 : (-3/2) = 7/4 * (-2/3) = -14/12 = -7/6 = -1. 1/6
4.
-2. 2/3 + (-1. 1/6) = -2. 2/3 - 1. 1/6 = -2. 4/6 - 1. 1/6 = -3. 5/6
Отв: -3. 5/6
Пошаговое объяснение:
1) 4,5 - 2. 1/4 = 4. 5/10 - 2. 1/4 = 4. 10/20 - 2. 5/20 =
2. 5/20 = 2. 1/4
2) 2. 1/4 * (-1. 5/27) = 9/4 * (-32/27) = 1/1 * (-8/3) = -8/3 = -2. 2/3
3) 1,75 : (-1. 1/2) = 1. 75/100 : (-1. 1/2) = 1. 3/4 : (-1. 1/2) = 7/4 : (-3/2) = 7/4 * (-2/3) = -14/12 = -7/6 = -1. 1/6
4) -2. 2/3 + (-1. 1/6) = -2. 2/3 - 1. 1/6 = -2. 4/6 - 1. 1/6 = -3. 5/6
ответ: -3. 5/6
Пошаговое объяснение:
1.
4,5 - 2. 1/4 = 4. 5/10 - 2. 1/4 = 4. 10/20 - 2. 5/20 =2. 5/20 = 2. 1/4
2.
2. 1/4 * (-1. 5/27) = 9/4 * (-32/27) = 1/1 * (-8/3) = -8/3 = -2. 2/3
3.
1,75 : (-1. 1/2) = 1. 75/100 : (-1. 1/2) = 1. 3/4 : (-1. 1/2) = 7/4 : (-3/2) = 7/4 * (-2/3) = -14/12 = -7/6 = -1. 1/6
4.
-2. 2/3 + (-1. 1/6) = -2. 2/3 - 1. 1/6 = -2. 4/6 - 1. 1/6 = -3. 5/6
Отв: -3. 5/6