Question

тезірек пж!!!!!!!!!!​

Answer 1

Ответ:

Пошаговое объяснение:

Б)

1) 7. 7/15 - 5. 5/12 = 7. 28/60 - 5. 25/60 = 2. 3/60 = 2. 1/20

2) 4. 1/10 : 2. 1/20 = 41/10 : 41/20 = 41/10 * 20/41 = 20/10 = 2

3) 2 * 5/6 = 10/6 = 5/3 = 1. 2/3

4) 5. 1/3 + 1. 2/3 = 6. 3/3 = 7

В)

1) 2. 1/6 + 8/15 = 2. 5/30 + 16/30 = 2. 21/30 = 2. 7/10

2) 7. 1/2 : 2. 7/10 = 15/2 : 27/10 = 15/2 * 10/27 = 5/1 * 5/9 = 25/9

3) 25/9 * 1. 4/5 = 25/9 * 9/5 = 25/5 = 5

4) 10. 5/12 - 5 = 5. 5/12