Months is plural when discussing the number. "How many months are in a year?"
A year has 12 months.
It is: 8.4 months of a year
There are 12 months in a year.
11.5 (eleven and a half)
6 months = a half of a year
There are 12 months in one year.
A year is TWELVE months.
12 months
If you mean how many months left in a year, then it would be eight months left in that year.
12 months are in a state prison year.
There are 4 months in 1/3 of a year