3 Divide Signed Numbers The rules for dividing signed numbers are the same as the rules for multiplying signed numbers. Procedure Dividing Signed Numbers 1) The quotient of two numbers with different signs is negative. 2) The quotient of two numbers with the same sign is positive. Divide. a) 18 3 b) 45 (9) c) 28 7 d) 72 6 e) 55 11 f) 0 2 g) 4 0 Solution a) 18 3 6 The quotient of two numbers with different signs is negative. b) 45 192 5 The quotient of two numbers with the same sign is positive. c) 28 7 d) 72 6 f) 0 2 g) 4 0 YOU TRY 3 Divide. a) 60 (5) b) 49 (7) c) e) 54 6 When working with fractions, we often write the negative sign in front of the fraction. Divide. a) 4 The quotient of two numbers with different signs is negative. 0 0 divided by a nonzero number is 0. is undefi ned. Division by 0 is undefi ned. 5 12 12 e) f) 7 3 4 55 11 0 g) b) 5 7 8 5 6 EXAMPLE 3 EXAMPLE 4 36 9 d) 8 1 0 10 www.mhhe.com/messersmith SECTION 10.4 Multiplying and Dividing Signed Numbers 743
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