It is 11500/18263, approx.
230 days
230 days in a normal year and 231 days in a leap year.
230 is an integer and not a fraction. However, it can be expressed in rational form as 230/1 which cannot be simplified.
230% = 23/10
Use 365 days for the number of days in a year
1/3 of a year is 120 days.
Assuming it is a normal year with 365 days, the fraction would be 65/365 = 13/73
A fraction requires two numbers. 21 days as a fraction of what? A month, a year, a century?
230% = 230/100 = 23/10
45 days is approximately 1/8 of a year.
Depending on when you start, 230 days, 232 days or 233 days - in a non-leap year.