304:100; 42,5:100;2,5:100;0,9:100;0,03:100

Question

304:100; 42,5:100;2,5:100;0,9:100;0,03:100

Answer 1

304:100=3,4
42,5:100=0,425
2,5:100=0,025
0,9:100=0,009
0,03:100=0,0003