Introduction to Ratios and Proportional Relationships

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Equivalent Ratio

If two ratios have the same value when simplified.

ratio

a number that relates two quantities/measures within a given situation in a multiplicative relationship

unit

a single undivided whole

tape diagram

ratio broken into segments; used to visualize/solve comparisons between ratios

Part-to-Whole Ratios

relate one part of the whole to the whole; units being compared are from the same group; ex. ratio of boys to the children in line

Part-to-Part Ratio

relates one part of a whole to another part of the same whole; ex. compares girls and boyes in the same class


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