Question

помогите 1) 4-2 5/9; 2) 8-3 7/8; 3) 7 3/4-5/12; 4)8 5/16-3/20​

Answer 1

Ответ:

1)=3 9/9-2 5/9=(3-2)+(9/9-5/9)=1 4/9

2)=7 8/8-3 7/8=(7-3)+(8/8-7/8)=4 1/8

3)=7 9/12-5/12=7 4/12=7 1/3

4)=8 5/16-3/20=8 25/80-12/80=8 13/80