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Unformatted text preview: ) c = a ( bc ) c. Distributive Properties – applies whenever a number is multiplied by a sum. i. a ( b + c ) = ab + ac ii. ( b + c ) a = ab + ac 4. Addition and Subtraction. a. Additive Identity : a + 0 = a , where a is any real number. 5. Multiplication and Division. a. Multiplicative Identity : a x 1 = a , where a is any real number. File: 13f0abe7b7b20e3e2326b91f778b6f0c346ec7e3.doc Updated: 8/14/09 College Algebra Chapter P Page 2 of 2 b. Properties of Fractions. i. Property 2: a / b ÷ c / d = a / b x d / c . ii. Property 4: a/b + c/d = (ad + bc)/bd iii. Property 6: If a / b = c / d , then ad = bc . File: 13f0abe7b7b20e3e2326b91f778b6f0c346ec7e3.doc Updated: 8/14/09...
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