7/12 in simplest form?

You really need to remember how to do this:

To determine if our answer is in its simplified form, we must factor the numerator and the denominator into its prime numbers.

Simplifying Improper Fractions

You may remember that an improper fractions is where the numerator has a greater value than that of the denominator. So each time you perform an operation on fractions and your answer ends up as an improper fraction, you will usually need to simplify your answer. The results will be in the form of a mixed number.

So to convert an improper fraction into a mixed number, we just divide the numerator by the denominator. The results will be a whole number part and a fractional part.