Question

помогите только с 4 и 5
Пожалуйста ​

Answer 1

Пошаговое объяснение:

Answer 2

Пошаговое объяснение:

№4

1) 15 - 13 4/97 = 14 97/97 - 13 4/97 = 1 93/97

2) 1 4/5 + 7/50 = 1 40/50 + 7/50 = 1 47/50

3) 12 7/10 - 7 = 5 7/10

4) 1 93/97 * 1 47/50 = 190/97 * 97/50 = 190/50 = 19/5

5) 19/5 : 5 7/10 = 19/5 : 57/10 = 19/5 * 10/57 = 1/1 * 2/3 = 2/3

№5

1) 1 3/13 + 14/65 = 1 15/65 + 14/65 = 1 29/65

2) 21 - 18 6/13 = 20 13/13 - 18 6/13 = 2 7/13

3) 5 10/11 - 5 3/55 = 5 50/55 - 5 3/55 = 47/55

4) 1 29/65 : 2 7/13 = 94/65 : 33/13 = 94/65 * 13/33 = 94/5 * 1/33 = 94/165

5) 94/165 : 47/55 = 94/165 * 55/47 = 2/3 * 1/1 = 2/3