Fractions as Relationships and Operations · Number & Operations-Fractions
Addition and Subtraction with Unlike Denominators
Finding common ground to combine fractional parts of different sizes.
Key Questions
- 1Why must we have a common denominator to add or subtract fractions?
- 2How does creating equivalent fractions change the representation but not the value?
- 3When is it more efficient to use a number line versus an area model for fractions?
Common Core State Standards
CCSS.Math.Content.5.NF.A.1CCSS.Math.Content.5.NF.A.2
Grade: 5th Grade
Subject: Mathematics
Unit: Fractions as Relationships and Operations
Period: Number & Operations-Fractions
Suggested Methodologies
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