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15.

# Multiply Unit Fractions by Whole Number

- 4th Grade Math

Extend the understanding of multiplication to fractions. Multiplication can be thought of as a process of combining (summing up) several copies of a number. Extending this line of thinking to fractions, one can visualize a fraction n/b as n copies of the unit fraction 1/b. For example, students reason that the fraction 3/4 can be thought of as 1/4 + 1/4 + 1/4 or 3 x (1/4). In Multiply Unit Fractions by a Whole Worksheet, students begin by visualizing multiplication of unit fractions by whole using models, before moving on to direct multiplication.

### Common Core Alignment

4.NF.4.aUnderstand a fraction a/b as a multiple of 1/b.