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Adding & Subtracting Fractions

Mathematics, Grade 4

 
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2 8 2 8 6 8 6 8 4 8 4 8 + + + + = = = = = = = = = = = = 1 8 1 8 7 8 7 8 3 4 3 4 = = 1 4 1 4 1 8 1 8 3 8 3 8 = = 1 8 1 8 1 8 1 8 = = 3 12 3 12 6 12 6 12 9 12 9 12 - - - - + + + + - - - - 2 8 2 8 3 4 3 4 4 8 4 8 + + = = 1 8 1 8 7 8 7 8 6 8 6 8 + + = = 3 4 3 4 6 8 6 8 ÷2 ÷2 ÷2 ÷2 6 8 6 8 3 4 3 4 x2 x2 x2 x2 3 12 3 12 1 2 1 2 9 12 9 12 = = 1 2 1 2 6 12 6 12 ÷6 ÷6 ÷6 ÷6 -- 3 8 3 8 3 8 3 8 = = 2 8 2 8 1 8 1 8 3 8 3 8 -- = = 2 8 2 8 1 4 1 4 x2 x2 x2 x2 Adding Fractions with Like Denominators Subtracting Fractions with Like Denominators Add the numerators. Keep the denominators the same. Simplify, if needed. Subtract the numerators. Keep the denominators the same. Simplify, if needed. Adding Fractions with Unlike Denominators Find equivalent fractions with the same denominator. Add the numerators and place the sum over the same denominator. Simplify, if needed. Find equivalent fractions with the same denominator. Subtract the numerators and place the difference over the same denominator. Simplify, if needed. Subtracting Fractions with Unlike Denominators © Copyright NewPath Learning. All Rights Reserved. 93-4409 www.newpathlearning.com Adding & Subtracting Fractions
\|xiBAHBDy01635pzY 2 8 2 8 6 8 6 8 4 8 4 8 + + + + = = = = = = = = = = = = 1 8 1 8 7 8 7 8 3 4 3 4 = = 1 4 1 4 1 8 1 8 3 8 3 8 = = 1 8 1 8 1 8 1 8 = = 3 12 3 12 6 12 6 12 9 12 9 12 - - - - + + + + - - - - 2 8 2 8 3 4 3 4 4 8 4 8 + + = = 1 8 1 8 7 8 7 8 6 8 6 8 + + = = 3 4 3 4 6 8 6 8 6 8 6 8 3 4 3 4 3 12 3 12 1 2 1 2 9 12 9 12 = = 1 2 1 2 6 12 6 12 ÷6 ÷6 ÷6 ÷6 -- 3 8 3 8 3 8 3 8 = = 2 8 2 8 1 8 1 8 3 8 3 8 -- = = 2 8 2 8 1 4 1 4 Adding Fractions with Like Denominators Subtracting Fractions with Like Denominators Add the numerators. Keep the denominators the same. Simplify, if needed. Subtract the numerators. Keep the denominators the same. Simplify, if needed. Adding Fractions with Unlike Denominators Find equivalent fractions with the same denominator. Add the numerators and place the sum over the same denominator. Simplify, if needed. Find equivalent fractions with the same denominator. Subtract the numerators and place the difference over the same denominator. Simplify, if needed. Subtracting Fractions with Unlike Denominators Key Vocabulary Terms add fraction denominator numerator difference subtract equivalent fraction sum ÷2 ÷2 ÷2 ÷2 x2 x2 x2 x2 x2 x2 x2 x2 © Copyright NewPath Learning. All Rights Reserved. 93-4409 www.newpathlearning.com Adding & Subtracting Fractions