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Tool: Fractionator Subtraction Demonstration
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Go to: http://syzygy.virtualave.net/frctntrsbdemo.htm (opens a new window)
Description: This script generates a proper fraction subtraction problem. It then creates a a model of the fractions based on unit squares. Next a common denominator and equivalent fractions models are given and the asnwer is modelled. Refreshing on clicking on the button will generate a new problem.
Technology Type: JavaScript 
Guide: User's Guide (opens a new window)
Author: Jeff LeMieux
Language: English 
Cost: Does not require payment for use

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Story: Story: The Fractionator
Support Material: Fractionator
Courses: Math 5 Subtracting fractions
Math 6 Subtracting fractions
Math 7 General, Fractions, Equivalent fractions, Subtracting fractions