Question

Решите примеры с дробями (6-10, ПРИКРЕПЛЕНО, 90 БАЛЛОВ даю!!!!!)

Answer 1

Ответ:

Пошаговое объяснение:

4) (1/3)³ * 27 = 1/27 * 27 = 1

5) 1 1/3 * 3/7 + 4/7 * 1 1/3 = 1 1/3 * ( 3/7 + 4/7) = 1 1/3 * 1 = 1 1/3

6) 1/5 * 3 5/6 - 1/5 * 1/6 = 1/5 * (3 5/6 - 1/6) = 1/5 * 3 2/3 = 1/5 * 11/3 = 11/15

7) 4 1/9 * 2 5/8 + 4 1/9 * 1 3/8 = 4 1/9 * ( 2 5/8 + 1 3/8) = 4 1/9 * 4 = 37/9 * 4 =

= 16 2/9

8) 2 3/13 * 4 5/9 - 2 3/13 * 1 5/9 = 2 3/13 * (4 5/9 - 1 5/9) = 2 3/13 * 3 =

29/13 * 3 = 87/13 = 6 9/13

9) (4/7 - 1/3 + 5/6) * 42 = (24/42 - 14/42 + 35/42) * 42 = 45/42 * 42 = 45

10) 2 5/6 * 1 1/12 - 1 1/12 * 1/3 + 11/12 * 5/2 = 1 1/12 * ( 2 5/6 - 1/3) + 11/12 * 5/2=

13/12 * (2 5/6 - 2/6) + 11/12 * 5/2= 13/12 * 2 3/6 + 11/12 * 5/2 =

= 13/12 * 15/6 + 11/12 * 5/2 = 195/72 + 55/24 = 195/72 + 165/72 =

= 360/72 = 5