Lowest terms is visually illustrated with Fraction Bars. Examples of pairs of fractions, where one member of the pair is in lowest terms, are listed so that a rule for obtaining lowest terms can be discovered by looking for patterns. There is an example showing why lowest terms is sometimes convenient, and another example showing that sometimes it is not convenient to write fractions in lowest terms. The video ends with a demonstration of the free interactive web game "Lowest Terms" from fractionbars.com.
Visit FractionBars.com for more information.
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