1) x/10 = 0.02; x = 0.2
2) x/1000 = 0.0047; x = 4.7
25,2*1/7=3,6 тн
0,18*3,5=0,63 м3
3/4 х=1
3х=4
х=4/3
х=1 1/3
12/5 у=12/40
12×40×у=12×5
480у=60
у=1/8