What is the word form for this decimal 15.73?

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.