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Presentation transcript:

Copyright Scott Storla 2015 Rational Numbers Copyright Scott Storla 2015

Copyright Scott Storla 2015 The Rational Numbers Copyright Scott Storla 2015

Copyright Scott Storla 2015 Proper Fractions Improper Fractions and Mixed Numbers Copyright Scott Storla 2015

Copyright Scott Storla 2015 Prime Factorization Copyright Scott Storla 2015

Copyright Scott Storla 2015 Prime Number A natural number, greater than 1, which has unique natural number factors 1 and itself. Ex: 2, 3, 5, 7, 11, 13 Copyright Scott Storla 2015

Copyright Scott Storla 2015 Composite Number A natural number, greater than 1, which is not prime. Ex: 4, 6, 8, 9, 10 Copyright Scott Storla 2015

Copyright Scott Storla 2015 Prime Factorization Copyright Scott Storla 2015

Copyright Scott Storla 2015 Prime Factorization To write a natural number as the product of prime factors. Ex: 12 = 2 x 2 x 3 Copyright Scott Storla 2015

Copyright Scott Storla 2015 Factor Rules Copyright Scott Storla 2015

Decide if 2, 3, and/or 5 is a factor of 42 310 987 4950 Copyright Scott Storla 2015

Building a factor tree for 20 5 4 2 2 The prime factorization of 20 is 2 x 2 x 5. Copyright Scott Storla 2015

Copyright Scott Storla 2015

Copyright Scott Storla 2015

Copyright Scott Storla 2015

Find the prime factorization of 24 2 12 2 6 2 3 The prime factorization of 24 is 2 x 2 x 2 x 3. Copyright Scott Storla 2015

Find the prime factorization of 315 5 63 3 21 7 3 The prime factorization of 315 is 3 x 3 x 5 x 7. Copyright Scott Storla 2015

Find the prime factorization of 119 7 17 The prime factorization of 119 is 7 x 17. Copyright Scott Storla 2015

Find the prime factorization of 495 5 99 9 11 3 3 The prime factorization of 495 is 3 x 3 x 5 x 11. Copyright Scott Storla 2015

Find the prime factorization of 945 5 189 63 3 3 21 7 3 The prime factorization of 945 is 3 x 3 x 3 x 5 x 7. Copyright Scott Storla 2015

Copyright Scott Storla 2015 Prime Factorization Copyright Scott Storla 2015

Copyright Scott Storla 2015 Reducing Fractions Copyright Scott Storla 2015

Copyright Scott Storla 2015

Copyright Scott Storla 2015 Reducing Fractions A fraction is reduced when the numerator and denominator have no common factors other than 1. Copyright Scott Storla 2015

Copyright Scott Storla 2015 Reducing Fractions A fraction is reduced when the numerator and denominator have no common factors other than 1. Copyright Scott Storla 2015

No “Gozinta” method allowed Copyright Scott Storla 2015

No “Gozinta” (Goes into) method allowed Copyright Scott Storla 2015

Simplify using prime factorization Copyright Scott Storla 2015

Simplify using prime factorization Copyright Scott Storla 2015

Reduce using prime factorization Copyright Scott Storla 2015

Reduce using prime factorization Copyright Scott Storla 2015

Reduce using prime factorization Copyright Scott Storla 2015

Copyright Scott Storla 2015 Reducing Fractions Copyright Scott Storla 2015

Multiplying Fractions Copyright Scott Storla 2015

No “Gozinta” method allowed Copyright Scott Storla 2015

using prime factorization Multiply Procedure – Multiplying Fractions 1. Combine all the numerators, in prime factored form, in a single numerator. 2. Combine all the denominators, in prime factored form, in a single denominator. 3. Reduce common factors 4. Multiply the remaining factors in the numerator together and the remaining factors in the denominator together. Copyright Scott Storla 2015

using prime factorization Multiply Copyright Scott Storla 2015

Copyright Scott Storla 2015 Procedure – Multiplying Fractions 1. Combine all the numerators, in prime factored form, in a single numerator. 2. Combine all the denominators, in prime factored form, in a single denominator. 3. Reduce common factors 4. Multiply the remaining factors in the numerator together and the remaining factors in the denominator together. Copyright Scott Storla 2015

Multiply using prime factorization Copyright Scott Storla 2015

Multiply using prime factorization Copyright Scott Storla 2015

Multiply using prime factorization Copyright Scott Storla 2015

Multiply using prime factorization Copyright Scott Storla 2015

Multiplying Fractions Copyright Scott Storla 2015

Copyright Scott Storla 2015 Dividing Fractions Copyright Scott Storla 2015

Copyright Scott Storla 2015 Reciprocal The reciprocal of a number is a second number which when multiplied to the first gives a product of 1. Copyright Scott Storla 2015

Copyright Scott Storla 2015 Procedure – Dividing Fractions To divide two fractions multiply the fraction in the numerator by the reciprocal of the fraction in the denominator. Copyright Scott Storla 2015

Copyright Scott Storla 2015 Procedure – Dividing Fractions To divide two fractions multiply the fraction in the numerator by the reciprocal of the fraction in the denominator. Copyright Scott Storla 2015

Divide using prime factorization Copyright Scott Storla 2015

Divide using prime factorization Copyright Scott Storla 2015

Divide using prime factorization Copyright Scott Storla 2015

Divide using prime factorization Copyright Scott Storla 2015

Copyright Scott Storla 2015 Dividing Fractions Copyright Scott Storla 2015