Adding two rational expressions by determine the LCD and adding like terms

The video tutorial explains how to find common denominators when adding fractions, especially when dealing with polynomials. It covers determining the least common denominator (LCD) by multiplying denominators when they don't divide into each other. The tutorial also demonstrates using the distributive property to simplify expressions and how to combine fractions with common denominators by adding their numerators.

Explain how to combine numerators when adding fractions with common denominators.

What is the result of adding the fractions 3X + 5X and 24 - 35?