Build fractions from unit fractions by applying and extending previous understanding of operations on whole numbers.
Apply/extend understandings of multiplication to multiply a fraction by a whole number. (4.NF.4)
a. Understand a fraction a / b as a multiple of 1 / b. For example, use a visual fraction model to represent 5 / 4 as the product 5 x 1/4, recording the conclusion by the equation 5 / 4 = 5 *(1 / 4). (4.NF.4a)
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