Question

срочно помощь даю 50 балов​

Answer 1

Ответ:

1)-10

2)22/3

3)-7,38

4) 0,108

5)-5/7

6)-13/6

7)43/7

8)-5/8

Answer 2

Ответ:

Пошаговое объяснение:
1)
= -25/6 * 12/5 = -5/1 * 2/1 = -10/1 = -10

2)
= -14/3 * (-11/7) = -2/3 * (-11/1) = 22/3 = 7. 1/3

3)
= -15,36 - (-7,98) = -15,36 + 7,98 = -7,38

4)
= -0,06 * (-1,8) = 0,108

5)
= (4/7 * (-21/8) ) - (-31/7 * 11/62) =
(1/1 * (-3/2) ) - (-1/7 * 11/2) =
-3/2 - (-11/14) = -3/2 + 11/14 =
-21/14 + 11/14 = -10/14 = -5/7

6)
= (3. 5/6 - 4. 3/6) * (3. 4/5 - 55/1 00) =
(3. 5/6 - 3. 9/6) * (3. 4/5 - 11/20) =
-4/6 * (3. 16/20 - 11/20) =
-2/3 * 3. 5/20 = -2/3 * 3. 1/4 =
-2/3 * 13/4 = -1/3 * 13/2 = -13/6 = -2. 1/6

7)
= 5. 3/7 - 2. 2/3 + 3. 8/21 =
5. 9/21 - 2. 14/21 + 3. 8/21 =
4. 30/21 - 2. 14/21 + 3. 8/21 =
2. 16/21 + 3. 8/21 = 5. 24/21 =
6. 3/21 = 6. 1/7

8)
= 2. 5/6 - 3. 7/8 + 2. 1/12 - 1. 2/3 =
2. 20/24 - 3. 21/24 + 2. 2/24 - 1. 16/24 =
-1. 1/24 + 2. 2/24 - 1. 16/24 =
1. 1/24 - 1. 16/24 = -15/24 = -5/8