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- CAHSEE
- STAR(CST) Test
- Example
- Introduction
- Resource
- Linked

# California's Common Core Content Standards

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- CAHSEE
- STAR(CST) Test
- Example
- Introduction
- Resource
- Linked

Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers. 9

3.Understand a fraction

*a/b*with*a > 1*as a sum of fractions*1/b*. 6- a.Understand addition and subtraction of fractions as joining and separating parts referring to the same whole. 5
- b.Decompose a fraction into a sum of fractions with the same denominator in more than one
way, recording each decomposition by an equation. Justify decompositions, e.g., by using a
visual fraction model.
*Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.*4 - c.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. 4
- d.Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem. 2