Adding & Subtracting Fractions Lesson 9. Math Vocabulary Fraction: A math term that shows part of a whole or part of a set. Numerator: TOP number of a.

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Adding & Subtracting Fractions Lesson 9

Math Vocabulary Fraction: A math term that shows part of a whole or part of a set. Numerator: TOP number of a fraction Denominator: BOTTOM number of a fraction Mixed Number: A whole number and a fraction together

Basic Fraction Review… Things you MUST know about fractions: fraction = numerator denominator same # = 1 same # Whole #  fraction = whole # 1 5  numerator 6  denominator 3 = 1 8 = 1 15 = = 5 17 = 17 2 =

Adding & Subtracting Fractions In order to ADD or SUBTRACT fractions… all fractions MUST have SAME (bottom) DENOMINATOR

Steps… 1)ALL #s are in fraction form 2)(bottom) denominators are the same 3)Fraction + Fraction *For mixed #s: Whole # + whole # & Fraction + Fraction 4) top +/- top. bottom stays the same __

Steps for Mixed # problems… 1)ALL #s are in fraction form 2)(bottom) denominators are the same 3)*For mixed #s: Whole # + whole # & Fraction + Fraction 4) top +/- top. bottom stays the same __

Practice… a) b) 6 __ c) 12 2 __ d)