If you mean 3/12 of a decade plus 25 years then it is 2.5+25 = 27.5 years
1 decade = 10 years 12 x 10 decades = 120 years
There are 12 decades in 120 years.
1.2 decades
13/12 is in its simplest form.
The fraction 12/77 is already in the simplest form.
12/17 is in its simplest form.
12/49 is in its simplest form.
5/12 is the simplest form.
5/12 = is the simplest form.
13/12 is in its simplest form.
1/12 is in its simplest form.1/12 is in its simplest form.
5/12 is in its simplest form.