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LESSON SET
Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.
teaches
Common Core State Standards
CCSS.Math.Content.4.NF.A.2
http://corestandards.org/Math/Content/4/NF/A/2