Thank you.
I know that way to say but you can see sometimes such as in a scientific paper, people write 0.5 hour, 1.5 hour etc.
Can you guide me?
I agree with James on everything except the combination of a digit and fraction.
One and three quarter hours.
An hour and three quarters.
I can not explain it but English does not seem to like double multiples in the same phrase.
.,,
Would you please write it in digits?You would say half an hour or thirty minutes