25/12 = 2 and 1/12
2 and two fifths
2 and 2/5
4 and 2/12
It can't be one. Mixed numbers are greater than 1.
It could be 2 and 12/12 which is the same as 36/12 = 3
It can't be one. Mixed numbers are greater than one.
10/12 is a fraction that is less than 1. It cannot sensibly be changed to a mixed fraction.
15⁄12 = 5⁄4 or 1 1⁄4
8 over 12 is a fraction whose absolute value is less than 1. It is not a mixed number. However, if you had to write it as a mixed number, I suggest 0 8/12 and you can simplify that if you so wish.
Both 16 and 12 can be divide by for, which results in 4/3. You can change for thirds into a mixed number. 4 divided by 3 is 1 remainder 1, so as a mixed number, 4/3 is 11/3.
The mixed number for 13 over 12 is 11/12