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Published byEzra Nash Modified over 8 years ago

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Chapter 3

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Fractions Numerator (top number / part) Denominator (bottom number / whole) Whole Number (1, 2, 3) Fraction (1/2, 2/3, ¾) Mixed Number (1 ½, 2 2/3, 3 ¾)

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Equivalent Fractions Fraction that names the same number as another fraction. 1/3 = 1/3 x 2/2 = 2/6 8/12 = 8/12 / 4 = 2/3

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Simplifying Fractions Lowest terms Greatest Common Factor –4/8 = ½ –¼ + ½ = –10/12 + 5/8 =

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Multiplying Fractions Simplify –4/8 * 2/5 = –¼ * ½ * ¾ = Cancelling –10/12 * 6/8 =

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Dividing Fractions Reciprocal –4/8 / 2/5 = –¼ / ½ = Cancelling –10/12 / 6/8 =

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Proper vs Improper Fraction Proper fraction has a numerator that is smaller than the denominator. Improper fraction has a numerator that is equal to or greater than the denominator.

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Mixed Numbers Adding –3 ½ + 2 ¼ = Subtracting –6 ½ - 4 ¾ = Multiplying –3 ½ * 6 ¼ = Dividing –3 ½ / 1 ¾ =

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Fractional Relationships 5/8 as much as $60 is ? $40 plus 7/8 of itself is ? What part of 36 is 4? 30 is ? Smaller than 40

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