How to add two basic rational expressions with the same denominators

The video tutorial explains how to handle fractions with common denominators. It highlights that when denominators are the same, you can keep the common denominator and simply add the numerators. The example given is 3/X + 5, illustrating the basic concept of adding fractions with a shared denominator.

Can you explain how to add the numerators once the common denominator is established?

What is the final expression when adding the fractions 3/X and 5?