Because 4.7 is the "abbreviation" for 4.70 also 4.7 is the simplified version of 4.70 kind of like a fraction you 4 70/100 simplified is 4 7/10 or 4.7.
3 divided by 8 = 0.375
0.375 x 100 = 37.5%
37.5% is closest to 38%
Do you want a ratio? If yes, the ratio is 120:52
