Решите ( 5,3+2,2) •6,4: (( 4 5/9- 2 1/3 ) : 2/9

Question

Решите ( 5,3+2,2) •6,4: (( 4 5/9- 2 1/3 ) : 2/9

Answer 1

( 5,3+2,2) •6,4: (( 4 5/9- 2 1/3 ) : 2/9
5,3+2,2=7,5=7 1/2=15/2
6.4=6 2/5=32/5
15/2×32/5=48

4 5/9-2 1/3=2 (5/9-3/9)=2 2/9= 20/9
20/9:2/9=20/9×9/2=10

48:10=4,8