# Common Core MATH 4 NF 3c Grade 4 Number And Operations Fractions Build Fractions From Unit Fractions By Applying And Extending Previous Understandings Of Operations On Whole Numbers

**Number And Operations - Fractions: Build Fractions From Unit Fractions By Applying And Extending Previous Understandings Of Operations On Whole Numbers.**

Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

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