(1-4/9)=5/9
(3/8-1/4)=1/8
5/9/1/8=40/9
1 1/5+2 2/3=3 13/10
3 13/10 -1 3/5=2 7/10
40/9*2 7/10=12
ОТВЕТ:12
(1-4/9)=5/9
(3/8-1/4)=1/8
5/9/1/8=40/9
1 1/5+2 2/3=3 13/10
3 13/10 -1 3/5=2 7/10
40/9*2 7/10=12
ОТВЕТ:12