Divide both the numerator and denominator by their HCF. The fraction has now been simplified. Knowing multiplication and division facts may make simplifying fractions easier. The HCF of 4 and 10 ...

There's a helpful shortcut worth remembering: if your fractions already share the same denominator, you can skip straight to adding or subtracting the numerators.

Therefore, this denominator definition tells PROC TABULATE to use the frequency count of All as the denominator. For example, the denominator for the category clerical, all is the frequency count for ...