Question

Помогите пж срочно по математике

Answer 1

4 : 2 2/5 = 4/1 : 12/5 =4/1 ×5/12 = 1/1 × 5/3 = 5/3 = 1 2/3

5 5/7 : 25 = 40/7 : 25/1 = 40/7 × 1/25 = 8/7 × 1/5 = 8/35

4 2/7 : 5/7 = 30/7 : 5/7 = 30/7 × 7/5 = 6/1 × 1/1 = 6/1 = 6    

6 2/3 : 2 4/7 =20/3 : 18/7 = 20/3 × 7/18 = 10/3 × 7/9 = 70/27 = 2 16/27

1 1/4 : 1 2/3 = 5/4 : 5/3 = 5/4 × 3/5 = 1/4 × 3/1 = 3/4