.63 is zero and 63 hundredths. (Or 6 tenths and 3 hundredths.)
63/100 or 0.63
It is 0.63
0.63
It is 63/100 as a fraction or 0.63 as a decimal
63
63 7/100 is the way to do it
0.63 or 63/100
0.6 + 0.03
0.05
0.05
Purely as a fraction it would be 63 over 20.