Instructional Video

Common Denominator LCD

Curated and Reviewed by Lesson Planet

Do not use the easiest but the first. The video shows a method to find a common denominator by finding the least common denominator to add fractions. By listing the multiples of the denominators, learners easily identify the least common multiple by finding the first common multiple.

1 Collection 20 Views 16 Downloads
CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Review common multiples with the class
Classroom Considerations
  • Scholars need to know how to add and subtract fractions with like denominators
  • Expects learners know how to find equivalent fractions
  • This video is hosted on YouTube
Pros
  • Uses a table to organize multiple making it easier to see
  • Colors show relationships between denominators and multiples to clearly identify them
Cons
  • None