Finding the common denominator so you can add two fractions

The video tutorial explains how to handle fractions with like and unlike denominators. It begins by discussing the simplicity of adding fractions with common denominators. The tutorial then addresses the challenge of unlike denominators and introduces the concept of the least common denominator (LCD). It explains how to convert fractions to have a common denominator by finding the LCD and adjusting the numerators and denominators accordingly. Finally, it demonstrates how to add fractions once they have common denominators, resulting in the correct answer.

What is the first step when you have fractions with like denominators?

• Subtract the numerators

• Add the numerators and keep the denominators

• Divide the numerators

• Multiply the denominators

What is the Least Common Denominator (LCD) for the denominators 4 and 5?

• 20

• 10

• 25

• 15

How do you create equivalent fractions once the LCD is determined?

• Add the numerators

• Subtract the denominators

• Multiply both the numerator and denominator by the same value

• Divide the numerators by the denominators

What is the equivalent fraction of 5/20?

• 1/4

• 1/3

• 1/2

• 1/5

What is the result when you add the numerators of fractions with a common denominator of 20?

• 9/20

• 11/20

• 5/20

• 7/20