Printable Adding Fractions Worksheets
Printable adding fractions worksheets for 4th and 5th grade, with an answer key on every sheet. The sets below cover 6 different skills, so you can start where your child actually is. Available as speed drills and fill in the blank.
Targeted Practice by Skill
About Adding Fractions
What this skill is
Adding fractions combines numerators over common denominators (2/7 + 3/7 = 5/7). For unlike denominators, students find common denominators (LCM) before adding numerators.
When children learn it
Adding like fractions is taught in 4th grade; unlike denominators are mastered in 5th grade, aligned to 4.NF.B.3 and 5.NF.A.1.
Teaching Tips
- Keep the common denominator unchanged: add top numerators only.
- Use fraction bar visuals to show why denominator pieces stay the same size.
Common Mistakes
- Adding denominators together (writing 2/7 + 3/7 = 5/14).
- Adding numerators without finding common denominators for unlike fractions.
More Fractions Concepts
Equal PartsIntroduction to FractionsModeling Fractions with PicturesReading and Writing FractionsNumerator and DenominatorFraction of a NumberFractions on a Number LineComparing FractionsCompleting Whole NumbersEquivalent FractionsFraction Word ProblemsOrdering FractionsSubtracting FractionsFractions and DecimalsMixed Numbers and Improper FractionsMultiplying FractionsSimplifying FractionsDividing FractionsMixed Operations with Fractions