Your device is currently offline. You can view downloaded files in My Downloads.

Lesson Plan

14. Compare fractions with unlike denominators (FP)

teaches Common Core State Standards CCSS.Math.Content.4.NF.A.2
teaches Common Core State Standards CCSS.Math.Practice.MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4
Quick Assign

You have saved this lesson!

Here's where you can access your saved items.


Card of

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson.

Lesson objective: Compare fractions with unlike denominators using the most appropriate strategy based on the fractions being compared.

This lesson helps to build fluency with comparing fractions with unlike denominators. Comparing indirectly to a benchmark fraction is emphasized here as well as using common numerators or common denominators when appropriate. This work develops students' understanding that comparing indirectly to benchmarks, using common numerators, and using common denominators are all effective strategies for comparing fractions with unlike denominators.

Students engage in Mathematical Practice 4 (model with mathematics) as they use number lines or area models to find equivalnet fractions in order to compare fractions with unlike denominators.

Key vocabulary:

  • benchmark
  • common denominators
  • common numerators
  • comparison
  • denominator
  • equivalent
  • numerator
  • same-sized pieces


Related content

Appears in

Understanding fraction equivalence and comparison

Provide feedback