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Measurement and Fair-Sharing Models for Dividing Fractions

Jeff Gregg, Diana Gregg 

May 2007, Volume 12, Issue 9, Page 490

Abstract:
Construction of two algorithms for dividing fractions, the common-denominator algorithm and the invert-and-multiply algorithm. The rationale behind each algorithm is related to the measurement or fair-sharing interpretations of division. Examples and sample problems are included.

Keywords:
Article
Conceptual Development
Grades 6-8
Algorithms
Math Coordinator / Coach
Teacher
Fractions / Decimals / Percents / Rational Numbers
Problems
Professional Development / Teacher Education
Reasoning and Proof
Multiplication and Division