Question

помогите пожалуйста.Срочно!​

Answer 1

Ответ:

Пошаговое объяснение:

№1

2 1/4 : 3/8 : 1/2 = 9/4 * 8/3 * 2= 144/12 = 12

№2

2 1/4 : ( 3/8 : 1/2) = 2 1/4 : (3/8 * 2) = 9/4 : 3/4 = 9/4 * 4/3 = 3

№3

(6 3/4 - 5 1/8 : 1 9/32) : 2 1/5 = 1 1/4

1) 5 1/8 : 1 9/32 = 41/8 : 41/32 = 41/8 * 32/41= 4

2) 6 3/4 - 4 = 2 3/4

3) 2 3/4 : 2 1/5 = 11/4 : 11/5 = 11/4 * 5/11= 5/4 = 1 1/4

№4

(3 1/4 + 2 1/6) : 2 3/5 - 2/3 : 4/9 = 7/12

1) 3 1/4 + 2 1/6 = 3 3/12 + 2 2/12 = 5 5/12

2) 5 5/12 : 2 3/5 = 65/12 : 13/5 = 65/12 * 5/13 = 25/12 = 2 1/12

3) 2/3 : 4/9 = 2/3 * 9/4 = 3/2 = 1 1/2

4) 2 1/12 - 1 1/2 = 2 1/12 - 1 6/12 = 1 13/12 - 1 6/12= 7/12

Answer 2

Ответ:

Пошаговое объяснение:

1.

1) 2. 1/4 : 3/8 = 9/4 : 3/8 = 9/4 * 8/3 = 3/1 * 2/1 = 6/1 = 6

2) 6 : 1/2 = 6 * 2/1 = 12/1 = 12

2.

1) 3/8 : 1/2 = 3/8 * 2/1 = 6/8 = 3/4

2) 2. 1/4 : 3/4 = 9/4 : 3/4 = 9/4 * 4/3 = 9/3 = 3

3.

1) 5. 1/8 : 1. 9/32 = 41/8 : 41/32 = 41/8 * 32/41 = 32/8 = 4

2) 6. 3/4 - 4 = 2. 3/4

3) 2. 3/4 : 2. 1/5 = 11/4 : 11/5 = 11/4 * 5/11 = 5/4 = 1. 1/4

4.

1) 3. 1/4 + 2. 1/6 = 3. 3/12 + 2. 2/12 =

5. 5/12

2) 5. 5/12 : 2. 3/5 = 65/12 : 13/5 = 65/12 * 5/13 = 5/12 * 5/1 = 25/12 = 2. 1/12

3) 2/3 : 4/9 = 2/3 * 9/4 = 18/12 = 3/2 = 1. 1/2

4) 2. 1/12 - 1. 1/2 = 2. 1/12 - 1. 6/12 =

1. 13/12 - 1. 6/12 = 7/12