Adding and Subtracting Mixed Numbers with Unlike Denominators

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65 slides and 11 pages
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  1. Math Bundle: 5th Grade Math PowerPoint Lessons for the YearThis bundle will completely simplify the way that you teach math! When Common Core standards came in, I needed a way to teach my fifth graders the standards in a way that was both engaging and scaffolded. Every lesson starts out simple and b
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Adding and Subtracting Mixed Numbers

When I first started teaching adding and subtracting mixed numbers with unlike denominators to my fifth graders about 14 years ago, I quickly realized that they needed some concrete step-by-step directions. They also needed a way to organize their work. I racked my brain for a little while before coming up with this graphic organizer. My students loved it!

I still use this method with my fifth graders and found SO MUCH success with it over the years!

PowerPoint Lesson Includes:

  • Adding and Subtracting Mixed Numbers without Regrouping
  • Subtracting Mixed Numbers with Regrouping

This bundle includes:

  1. Adding and PowerPoint Lesson with Teacher Notes
  2. Interactive Notes: Students can use these as a graphic organizer while you teach with the PowerPoint Lesson
  3. Adding and Subtracting Mixed Numbers Practice Pages (10 pages)

Also Available:

Adding and Subtracting Fractions Using the Four-Square Method

⭐ | SAVE MONEY | with the Adding and Subtracting Fractions BUNDLE


Take a look at my other fifth grade math lessons:

Fractions Bundle (NF Standards)

Decimals Bundle (NBT Standards)

Whole Number Division (NBT Standards)

Expressions, Variables, and Order of Operations (OA Standards)

Coordinate Planes and Numerical Patterns (OA Standards)

Measurement (MD Standards)

Volume (MD Standards)

Geometry (G Standards)

Line Plots (MD Standards)

Fifth Grade Constructed Response Sheets

SAVE with Bundles:

Math Interactive Notebook Bundle

Math PowerPoint Lessons Bundle

5th Grade Math Units for the YEAR


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Total Pages
65 slides and 11 pages
Answer Key
Teaching Duration
3 hours
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to see state-specific standards (only available in the US).
Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.
Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, 𝘢/𝘣 + 𝘤/𝘥 = (𝘢𝘥 + 𝘣𝘤)/𝘣𝘥.)


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