Question

Помогите пожалуйста. Срочно

Answer 1

1) 6 11/15  -  4 3/20 = 6 44/60  -  4 9/60 = 2 35/60 = 2 7/12
2) 18,6 : 2 7/12 = 186/100 : 31/12 = 186/100 * 12/31 = 6/25 * 3/1 = 12/25
3) 20 - 12/25 = 19 25/25  -  12/25 = 19 13/25 = 19,52

Answer 2

6 11/15-4 3/20=2 7/12
18 3/5:2 7/12= 7 1/5
20-7 1/5=12 4/5