Proper fractions, being less than one, cannot become whole numbers.
12/10 does not equal a whole number.
13/12 is not a whole number and so you cannot write it as a whole number.
5/12 minus 1/9 = 11/36 in its simplest form
The simplest form of a whole number is the number itself: 12.
4/12 minus 1/9 = 2/9 in its simplest form
12.1 is a mixed number in decimal form and there is no sensible way to represent it as a whole number. The whole part of it is 12.
12.40 is a mixed number in decimal form and there is no sensible way to represent it as a whole number. The whole part of it is 12.
12.51 is a mixed number in decimal form and there is no sensible way to represent it as a whole number. The whole part of it is 12.
When expressed as a whole number, 12 over 12 simplifies to 1. This is because any number divided by itself equals 1. In this case, the numerator and denominator are the same, so the fraction simplifies to 1.
2
It is 4.
20/12 can not be expressed as a whole number but as a mixed number it is 1 and 2/3