Making sense of adding Rational Expressions

The video tutorial explains the process of adding and subtracting fractions by finding a common denominator, initially using integers and then transitioning to algebraic expressions. It highlights the importance of the least common denominator (LCD) and demonstrates how to apply it in both simple fractions and algebraic expressions. The tutorial also covers the use of polynomials in finding common denominators and emphasizes the need for simplification using algebraic techniques.

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