## Video: Adding Fractions with Like Denominators

Standards CCSS.MATH.CONTENT.4.NF.B.3.CAdd 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. Summary Now that you understand what a fraction is, what’s a numerator and what’s a denominator, you can start doing operations with fractions.…

## Introducing Fractions

Standards CCSS.MATH.CONTENT.4.NF.B.3Understand a fraction a/b with a > 1 as a sum of fractions 1/b. CCSS.MATH.CONTENT.3.NF.A.1Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b. Summary Before you jump into teaching how to add, subtract, multiply or divide…

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