It is: 10/12 = 5/6 in its simplest form
As a fraction of a year it is 1/12
One month is 1/120 of a decade, since there are 12 months in a year and 10 years in a decade.
A month, a week or a day
1/12
A month is 1/12 of a year
is 3/4 of a year
1/12
It depends what you want 21 days to be a fraction of. Most commonly, if you mean a fraction of a week: 1 week = 7 days So: 21 days ÷ 7 days = 3 weeks As a fraction: 21/7 = 3 So 21 days = 3 whole weeks, or 3/1 as a fraction. If you mean a fraction of a month or year, it would be different.
It is 1/120th. There are 120 months in a decade (10 years).
It is 28/365, 30/365 or 31/365.
It is 28/365 or 30/365 or 31/365.
9/12