Resources and Tools for Elementary Math Specialists and Teachers
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Product of Simple Fractions

This Java applet displays the multiplication of two fractions as an overlaying of rectangular areas. The left rectangle illustrates the left fraction as a horizontal fraction bar; the right rectangle shows the right fraction as a vertical fraction bar; and the middle rectangle represents their overlay. To change the numerator or denominator of the multiplicands, click a digit slightly off-center (left to decrease, right to increase).
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(1 Comments)
Contributed by: Interactive Math Miscellany and Puzzles, Alexander Bogomolny, Author
Math TopicMeasurement, Number Sense, Fractions, Mathematical Practices, Mathematical Processes, Basic Operations
Grade Level3, 4, 5
Resource TypeDemonstration, Interactive Media

  • Additional Information
    • AudienceEducator
    • LanguageEnglish (USA)
    • Education Topic
    • Interdisciplinary Connection
    • Professional DevelopmentNo
    • ContributorInteractive Math Miscellany and Puzzles, Alexander Bogomolny, Author
    • Publication Date2011
    • RightsCopyright (c) 1996-2011 Alexander Bogomolny.
      http://www.cut-the-knot.org/Terms.shtml
    • AccessFree access
  • Standards
    • Common Core State Standards for Mathematics

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  • User Comments
    • 4
      Good Resource
      By bethb on 02/19/2013 - 15:16
    • This is a good resources to show how multiplying fractions works. However you need to read the directions carefully to make it show a variety of fractions.