As a fraction of a year it is 1/12
A month, a week or a day
1/12
is 3/4 of a year
A month is 1/12 of a year
1/12
A fraction requires two numbers. 21 days as a fraction of what? A month, a year, a century?
Nine of them.
It is: 10/12 = 5/6 in its simplest form
It is 28/365 or 30/365 or 31/365.
It is 28/365, 30/365 or 31/365.
I guess you mean 9 months as a fraction of a year. 1 year = 12 months ⇒ 9 months = 9/12 of a year = 3/4 = 0.75