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Ratios (Tape Diagrams ((uploaded image), it is used to solve word problems…
Ratios
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Double Number Line
Double number line diagrams can help make visible that there are many, even infinitely many, pairs of numbers in the same ratio—including those with rational number entries. As in tables, unit rates (R) appear in the pair (R, 1)
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Equivalent Ratios
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Equivalent ratios (which are, in effect, equivalent fractions) are two ratios that express the same relationship between numbers
