Выполните действия 3) 1 целая 1/3 * 2 целых 2/3 : 4/9 5) 8 целых 1/3 * 1 целая 5/7 : 2 целых 8/27

No3
1) 1 1/3×2 2/3=4/3×8/3=4×8/3×3=32/9=3 5/9
2) 3 5/9÷4/9=32/9÷4/9=32/9×9/4=8/1=8.
No5
1)8 1/3×1 5/7=25/3×12/7=25×4/1×7=100/7=14 2/7
2)14 2/7÷2 8/27=100/7÷62/27=100/7×27/62=100×27/7×62=2700/434=6 48/217

3)4/2*8/3:4/9=48/2=24 1/2
5)25/3*12/7:62/27=2700/434=6 96/434