Fractions practice

Multiply fractions and whole numbers

Connect a fraction times a whole number with finding that fraction of an amount.

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Read the expression as the stated fraction times, or of, the whole number. Write the whole number over one, multiply and simplify. Explain what the result means as an amount.

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Learning objective

What this activity builds

Represent a whole number as a fraction over one and use multiplication to find a fractional amount.

Worked example

What is 3/5 of 20?

12.

One-fifth of 20 is 4, so three-fifths is 3 × 4 = 12. The fraction multiplication (3/5) × (20/1) gives the same result, 60/5.

Teaching notes

Make the practice count

  • Use equal groups to connect the words of and times.
  • When possible, divide by the denominator before multiplying by the numerator to keep the arithmetic small.
  • Contrast finding a part with finding the unknown whole; those require different starting information.

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Configured PDF · Multiplying Fractions and Whole Numbers · US Letter

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Math SheetNameScoreTeacherDate/ 10Multiplying Fractions and Whole NumbersMultiply a fraction by a whole number using the selected wording.1.13×52.24×43.210×54.35×75.34×26.13×107.12×58.13×39.12×810.610×5math-sheet.comPage 1 / 1

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