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Number and Operations—Fractions Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers. 4Apply and extend previous understandings of multiplication to multiply a fraction by a whole number. aUnderstand 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 × (1/4], recording the conclusion by the equation 5/4 = 5 × (1/4).
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