That would be equivalent to 12/1, or 12. (1/1 is one whole.)
12
12
3
12 thirds.
?
12 xx
There are 12 / (1/5) = 60 of them.
There are 120 of them because 120/10 = 12
48 twelfths.
I believe that there are 32 fourths in eight wholes.
There are 12 of them because 12/3 = 4
The last time I checked, exactly twelve!