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Common Core Standards

Decompose Fractions

Grade: 4th Grade
Standard:

CC.2.1.4.C.2

Description:

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

Standard:

Math.4.NF.3a or 4.NF.B.3.A

Description:

Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

Standard:

Math.4.NF.3b or 4.NF.B.3.B

Description:

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.

Standard:

M04.A-F.2.1.2

Description:

Decompose a fraction or a mixed number into a sum of fractions with the same denominator (denominators limited to 2, 3, 4, 5, 6, 8, 10, 12, and 100), recording the decomposition by an equation. Justify decompositions (e.g., by using a visual fraction model)

4th Grade Math - Decompose Fractions Lesson
 
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