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Scaling up means to multiply the numerator and the denominator of a ratio (fraction) by the same factor as in the example below.
Scaling up... 4 5 x 3 x 3 12 15 ; 4 5 x 5 x 5 Scaling down means to divide the numerator and the denominator of a ratio (fraction) by the same factor as in the example below.
Scaling up... 6 8 ÷ 2 ÷ 2 4 3 ; 10 15 ÷ 5 ÷ 5 A rate is a ratio that compares two quantities that are measured in different units.
Miles per gallon of gasoline would be a rate as they are different units of measure.
Comparing yellow to red is a ratio where comparing dollars to hours is a . A ratio is a comparison using division. It may be written using the word "to", with a colon, or as a fraction. ALWAYS SIMPLIFY.
Comparing 4 boys to 3 girls may be written as
4 boys to 3 girls
4 boys:3 girls
or boys
girls A proportion is an equation that states that two ratios (or fractions) are equal. 4 5 12 15 is a . A unit rate is a comparison of two measurements in which the denominator has a value of one unit. If you can buy 5 apples for $1.25, then one costs $.25.
One apple is $.25
$12 1 is an example of a . Equivalent ratios are ratios that form a proportion and represent the same part-to-part relationship or the same part-to-whole relationship.
The above fractions are examples of ratios since they form a proportion. 6 8 3 4 To make the fraction or ratio stay equivalent by multiplying the numerator and the denominator by the same number. scaling up rate proportion equivalent ratios scaling down unit rate ratio Ratios that simplify to the same ratio or fractions and represent the same relationships. scaling up rate proportion equivalent ratios scaling down unit rate ratio A ratio that compared two quantities that are measured in different units. scaling up rate proportion equivalent ratios scaling down unit rate ratio A ratio where the denominator is one. scaling up rate proportion equivalent ratios scaling down unit rate ratio To make the fraction or ratio stay equivalent by dividing the numerator and the denominator by the same number. scaling up rate proportion equivalent ratios scaling down unit rate ratio When two ratios are equivalent they will form a.... scaling up rate proportion equivalent ratios scaling down unit rate ratio This is a comparison using division. It may be written using the word "to", a colon, or as a fraction. scaling up rate proportion equivalent ratios scaling down unit rate ratio |