Question

УМОЛЯЮ ПОМОГИТЕ ДАЮ 100 БАЛОВ

Answer 1

1)

4 1/2 * 2 4/9  +  1 1/2 * 2 4/9 =

= (4 1/2 + 1 1/2) * 2 4/9 =

= 5 2/2 * 2 4/9 =

= 6 * 2 4/9 =

= 6 * 22/9 =

= 44/3 = 14 2/3

2)

3 2/3 * 7 1/5  -  1 1/6 * 7 1/5 =

= (3 2/3 - 1 1/6) * 7 1/5 =

= (3 4/6 - 1 1/6) * 7 1/5 =

= 2 3/6 * 7 1/5 =

= 2 1/2 * 7 1/5 =

= 5/2 * 36/5 =

= 36/2 = 18

Answer 2

Пошаговое объяснение:

Вынесем за скобки общий множитель:

1)

2 4/9 * (4 1/2 + 1 1/2) = 2 4/9 * 5 2/2 = 2 4/9 * 6 = 22/9 * 6 = 22/3 * 2 = 44/3 = 14 2/3

2)

7 1/5 * (3 2/3 - 1 1/6) = 7 1/5 * (3 4/6 - 1 1/6) =

7 1/5 * 2 3/6 = 36/5 * 15/6 = 6/1 * 3/1 = 18/1 = 18