30+21+0.4+0.15 is 51.55
21/100 ( Twentyone hundredths).
Yes three tenths is greater than three hundredths
0.30 = three tenths or thirty hundredths
Three tenths = thirty hundredths.
The decimal number of seven and four tenths and three hundredths is 7.43
904
Yes because thirty hundredths is like three tenths. since it is thirty-one hundredths it is more
three and fifteen hundreths
Fifty-three tenths and eight hundredths
15.73 on word form is 'Fifteen point seven three'. NB You correspondent writing 'fifteen and seventy three hundredths. is correct. However, it could still be read as as fraction '73/100'. However it is incorrect to say or write , 'Fifteen point seventy three'. Becasue the '7' in in the teneths column and the '3' in the hundredths column; it is NOT a numerical unit.
53.15
fifteen pence