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Common Core Teaching Resources

CCSS.MATH.CONTENT.4.NF.B.3.C

In Grade 4 Standards for Mathematical Practice Number & Operations - Fractions Build fractions from unit fractions CCSS.MATH.CONTENT.4.NF.B.3
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.