З06
а) 25,8:(3,567+20,433):5
25,8:23,700:5
25,8:23,700=86/79
86/79:5=86/395
б) (8,115-0,655):(3,631+0,369)
8,155-0,655=7,46
3,631+0,369=4
7,46:4=1,865
307
а)(1-0,5 2):3*5
1-0,5 2=4/3
3*5=15
4/3:15=20/1
б)(0,16+0,04) 2:8*6
0,16+0,04 2=101/625
8*6=48
101/625:48=101/30000
в)(10 2-35,35):(6*0,25)
10 2-35,35=64,65
6*0.25=1,5
64,65:1,5=43,1
