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Adding mixed numbers (like denominators)

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Free printable adding mixed numbers (like denominators) worksheets for 3rd grade. Students add two mixed numbers by combining whole number parts and fractional parts separately, then regrouping if the fractional sum exceeds one whole. These worksheets extend fraction addition into the mixed number domain. Part of our fractions and decimals worksheets collection.

What You'll Learn

  • Add mixed numbers that share the same denominator
  • Combine whole number parts and fractional parts separately
  • Simplify results when the fractional sum exceeds one whole

FAQ

What's the standard procedure for adding two mixed numbers with like denominators?

Add the whole numbers together, add the fractions together, then combine — if the fractional sum is improper, convert it and add the extra whole to the whole number sum.

What does 'regrouping' mean in the context of mixed number addition?

Regrouping occurs when the fractional parts add up to more than one whole (e.g., 3/4 + 3/4 = 6/4 = 1 2/4), requiring students to carry 1 to the whole number column.

How can fraction models support mixed number addition?

Drawing fraction bars for each mixed number, combining them, and counting the total helps students visualize regrouping before working abstractly.

Grade
3rd Grade
Ages
Ages 8-9
Subject
Math
Format
Printable PDF

Ratings & Reviews

3

Priya N.

Kindergarten Teacher · Verified download

Apr 2026

This is going straight into my lesson plans the second it drops. Please prioritize this one!

Helpful · 13

Emily W.

Homeschool parent · Verified download

May 2026

Excited for this one! I've been hunting for a good printable on this topic for weeks.

Helpful · 9

Rachel H.

Homeschool parent · Verified download

Apr 2026

We've been waiting for this topic. Signed up just to get notified when it's ready.

Helpful · 6

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