Printable Simplifying Fractions Worksheets

Printable simplifying fractions worksheets for 5th grade, with an answer key on every sheet. The sets below cover 4 different skills, so you can start where your child actually is. Available as speed drills.

Targeted Practice by Skill

About Simplifying Fractions

What this skill is

Simplifying fractions reduces fractions to lowest terms by dividing numerator and denominator by their greatest common factor (GCF) (e.g., 6/8 divided by 2/2 = 3/4).

When children learn it

Simplifying fractions is taught in 4th and 5th grade, aligned to 4.NF.A.1.

Teaching Tips

  • Find the GCF of numerator and denominator before dividing.
  • Check if both top and bottom numbers share common factors like 2, 3, or 5.

Common Mistakes

  • Stopping reduction early when common factors remain (reducing 12/24 to 6/12 instead of 1/2).
  • Dividing numerator and denominator by different numbers.