Simplifying the sum of two rational expressions with like denominators

The video tutorial explains how to handle fractions with common denominators. It starts with an example, emphasizing the importance of recognizing common denominators, regardless of their appearance. The instructor demonstrates the simplification process, leading to the final result of 1/X. The tutorial highlights the concept that fractions with the same denominator can be simplified by focusing on the numerators.

Describe the importance of understanding fractions in mathematics.

How can you identify common denominators in fractions?