👉 Learn how to find the domain of rational functions with radicals in both the numerator and the denominator. Recall that the domain of a function is the set of possible input values (x-values) of ...

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 is 2.