Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation and justify decompositions by using a visual fraction model (e.g., 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).

Number and Operations- Fractions

- Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.
Understand the fraction a/b, with a > 1, as the sum of a of the fractions 1/b.