Explore fraction subtraction as the difference between the lengths of two strips. [br][br]Enter two proper fractions and click [b]Subtract[/b]. Then use the [b]+[/b] and [b]−[/b] buttons to generate equivalent fractions with a common denominator. Click [b]Reset Model[/b] to restart the animation. [br][br][size=85]Note: Adapted from [url=https://www.geogebra.org/m/quk6d8gz]Regional Educational Laboratory Midwest[/url].[/size]

Adapted from the [url=https://www.geogebra.org/m/EK55dCFh]Fraction Bar - Subtraction[/url] resource by Auston B Cron, who thanks Tang Dashi on the GeoGebra Forum. Adapted by [url=https://ies.ed.gov/ncee/rel/region/midwest]Regional Educational Laboratory Midwest[/url] for use with the Teaching Fractions Toolkit, which is based on the IES Practice Guide [url=https://ies.ed.gov/ncee/wwc/PracticeGuide/15][i]Developing Effective Fractions Instruction for Kindergarten Through 8th Grade[/i][/url].[br][br][url=mailto:ptierneyfife@edc.org]Contact us[/url] if this resource should be updated, or with questions or suggestions. We appreciate your help maintaining the quality of this resource.