It is 0.45
It is "one and forty-five hundredths", the decimal fraction hyphenated.
0.45
5.43 = five and forty-three hundredths.
0.45
1.45
1.45
forty five one hundredths
5.46
45.06
0.45 = forty-five hundredths.
3,000.45
Forty hundredths in decimal form is 0.40.