Ответ:
Пошаговое объяснение:
1) 2/5 - 3/2 = 4/10 - 15/10 = -11/10
2) 11/4 : (-11/10) = 11/4 * (-10/11) = -10/4 = -5/2 = -2. 1/2
3) 3/4 + 5/6 = 9/12 + 10/12 = 19/12
4) 19/12 : (-25/8) = 19/12 * (-8/25) = 19/3 * (-2/25) = -38/75
5) -2. 1/2 + (-38/75) =
-2. 1/2 - 38/75 =
-2. 75/150 - 76/150 =
-2. 151/150 = -3. 1/150
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Answers & Comments
Ответ:
Пошаговое объяснение:
1) 2/5 - 3/2 = 4/10 - 15/10 = -11/10
2) 11/4 : (-11/10) = 11/4 * (-10/11) = -10/4 = -5/2 = -2. 1/2
3) 3/4 + 5/6 = 9/12 + 10/12 = 19/12
4) 19/12 : (-25/8) = 19/12 * (-8/25) = 19/3 * (-2/25) = -38/75
5) -2. 1/2 + (-38/75) =
-2. 1/2 - 38/75 =
-2. 75/150 - 76/150 =
-2. 151/150 = -3. 1/150