Question

5. Виконайте дії:
1) (7-2 2/5:8/15):5 5/8. ??

2)(8-2 11/12:7/16):2 2/27. ??​

Answer 1

Пошаговое объяснение:

1)

2 2/5: 8/15 = 12/5 ×15/8= 6/1 × 3/4 = 6/4 = 1 2/4 = 1 1/2

7- 1 1/2 = 6 2/2- 1 1/2 = 5 1/2

5 1/2: 5 5/8 = 11/2: 45/8 = 11/2 × 8/5= 88/10= 8 8/10= 8 4/5

2)

2 11/12: 7/16 = 35/12: 7/16 = 35/12 × 16/7 = 35/3 × 4/7 = 140/21= 6 14/21

8- 6 14/21 = 7 21/21- 6 14/21 = 1 7/21= 1 1/3

1 1/3: 2 2/27 = 4/3 × 56/27 = 224/81=2 62/81