Question

Народ!! Экстренно

1) 23 + (7 1/3 - 6 7/8) / 3/4 - 5 1/4


2) 14/63 * (1 29/55 / 4/15) * 11/20

Answer 1

Пошаговое объяснение:

№1

23 + (7. 1/3 - 6. 7/8) / 3/4 - 5. 1/4 = 18. 13/36

1) 7. 1/3 - 6. 7/8 = 7. 8/24 - 6. 21/24 = 6. 32/24 - 6. 21/24 = 11/24

2) 11/24 : 3/4 = 11/24 * 4/3 = 11/6 * 1/3 = 11/18

3) 23 + 11/18 = 23. 11/18

4) 23. 11/18 - 5. 1/4 = 23. 22/36 - 5. 9/36 =

18. 13/36

№2

14/63 * (1. 29/55 / 4/15) * 11/20 = 7/10

1) 1. 29/55 : 4/15 = 84/55 * 15/4 = 21/11 * 3/1 = 63/11

2) 14/63 * 63/11 = 14/1 * 1/11 = 14/11

3) 14/11 * 11/20 = 7/1 * 1/10 = 7/10