Пошаговое объяснение:

751.

1) 2/3

2) 5/8

3) 2/3

4) 2/3

5) 5/3=1 2/3

6) 3/2=1 1/2

752.

1) 2/3

2) 10/1=10

3) 3/1=3

4) 5/2=2 1/2

5) 3/1=3

6) 5/2=2 1/2

Ответ:

Пошаговое объяснение:

751

1)

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

2)

5/12 : 2/3 = 5/12 * 3/2 = 15/24 = 5/8

3)

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

4)

8/15 : 4/5 = 8/15 * 5/4 = 2/3 * 1/1 = 2/3

5)

2/5 : 6/25 = 2/5 * 25/6 = 1/1 * 5/3 = 5/3 = 1. 2/3

6)

3/8 : 1/4 = 3/8 * 4/1 = 3/2 * 1/1 = 3/2 = 1. 1/2

752.

1)

1. 2/3 : 2. 1/2 = 5/3 : 5/2 = 5/3 * 2/5 = 1/3 * 2/1 = 2/3

2)

12 : 1. 1/5 = 12 : 6/5 = 12 * 5/6 = 2 * 5/1 = 10/1 = 10

3)

3. 3/4 : 1. 1/4 = 15/4 : 5/4 = 15/4 * 4/5 = 3/1 * 1/1 = 3/1 = 3

4)

11. 1/4 : 4. 1/2 = 45/4 : 9/2 = 45/4 * 2/9 = 5/2 * 1/1 = 5/2 = 2. 1/2

5)

5. 1/4 : 1. 3/4 = 21/4 : 7/4 = 21/4 * 4/7 = 3/1 * 1/1 = 3/1 = 3

6)

3. 1/8 : 1. 1/4 = 25/8 : 5/4 = 25/8 * 4/5 = 5/2 * 1/1 = 5/2 = 2. 1/2