Math Curriculum
Level C
Unit: Fractions (Equivalency, Addition, and Subtraction)
Key Lesson 5.6.10 All Sorts of Denominators
Lesson topic: Add and subtract fractions with unlike denominators
Instructor Materials
- Teacher guide
- Slides
- CCRS standard: 5.NF.1
- Learning goal: Recognize that when adding or subtracting fractions with unlike denominators, a common denominator can be found by multiplying the denominators.
- 5.6 Assessment and Practice Problems
Student Materials
Related Lessons
Preparation
If students need additional lessons before this key lesson, use these supplemental lessons.
- 4.3.16 Tenths and Hundredths, Together
- 4.3.17 Sums of Tenths and Hundredths
- 4.3.18 Lots of Fractions to Add
- 5.6.9 Use Equivalent Expressions
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2. Adaptations and updates to IM K-5 Math are copyrighted 2019 by Illustrative Mathematics®, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
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