Question

( 2/15+1 7/12)* 30/103-2:2 1/4*9/32

Answer 1

(2/15+1 7/12)* 30/103-2:2 1/4*9/32= 1/4

2/15+1 7/12= 2/15+19/12= 8/60 +95/60=103/60
103/60*30/103=1/2

2:2 1/4=2:9/4=8/9
8/9*9/32=1/4

1/2-1/4=1/4

Answer 2

реши еще вот это (3 1/2:4 2/3+4 2/3:3 1/2)*4 4/5

Answer 3

(3 1/2:4 2/3+4 2/3:3 1/2)*4 4/5 =

Answer 4

да

Answer 5

3 1/2:4 2/3