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Published byPeregrine Dickerson Modified over 8 years ago

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Fraction Addition

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Try some 4 / 5 + 3 / 5

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Apples and Oranges The things you add have to be the same size

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Common Denominator

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A number all original denominators divide into evenly 12 is a common denominator because 3 and 4 both divide 12 evenly.

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Least Common Denominator To find the least common denominator –Write the times table list for each denominator –The smallest number that is in all rows is the least common denominator

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Least Common Denominator To find the least common denominator –Write the times table list for each denominator –The smallest number that is in all rows is the least common denominator

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Try One Find the common denominator for these fractions A) 2 / 3 + 3 / 5 B) ¾ + 7 / 12 C) 2 / 5 + 3 / 8 + 7 / 10

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Addition Find a common denominator Multiply numerator and denominator by the same number Add Simplify

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Addition Find a common denominator Multiply numerator and denominator by the same number Add Simplify

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Addition Find a common denominator Multiply numerator and denominator by the same number Add Simplify

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Try one

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