Question

Прошу вас помогите, умоляю

Answer 1

Ответ:

Пошаговое объяснение:

1)

2/5 * 1. 1/4 = 2/5 * 5/4 = 1/1 * 1/2 = 1/2

1. 9/11 : 4/5 = 20/11 : 4/5 = 20/11 * 5/4 = 5/11 * 5/1 = 25/11 = 2. 3/11

2. 1/9 * 4 = 19/9 * 4 = 76/9 = 8. 4/9

17 : 1. 8/9 = 17 : 17/9 = 17 * 9/17 = 1 * 9/1 = 9/1 = 9

2)

1) 2. 1/3 * 3. 1/5 = 7/3 * 16/5 = 112/15 =

7. 7/15

2) 8. 4/9 : 2 = 76/9 * 1/2 = 38/9 * 1/1 = 38/9 = 4. 2/9

3) 7. 7/15 - 4. 2/9 = 7. 21/45 - 4. 10/45 = 3. 11/45

5. 2/7 * (1. 1/4 + 1. 3/4) = 5. 2/7 * 2. 4/4 = 5. 2/7 * 3 = 37/7 * 3 = 111/7 =

15. 6/7