using prime factorization monday, august 25, 2014
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USING PRIME FACTORIZATION
MONDAY, AUGUST 25, 2014
1. FIND THE PRIME FACTORIZATION OF THE NUMBERS
2. FIND THE PRODUCT OF THE COMMON PRIME FACTORS
24
2 12
2 6
2 3
60
2 30
2 15
2 22
2 33
3 5
2 5
2 2 3
12
GCF
63 84
7 9
3 3
2 42
2 21
3 7
3 273 2 3 7
3 7
21
GCF
SIMPLIFYING A FRACTION USING PRIME FACTORIZATION
12
20
2 ∙ 2 ∙ 3
2 ∙ 2 ∙ 5
3
5
WRITING A FRACTION AS A DECIMAL
THE FRACTION ¾ CAN BE READ AS 3 DIVIDED BY 4. 3 IS INSIDE THE DIVISION HOUSE AND 4 IS ON THE OUTSIDE.
4 3
0 7
0.
2 8
2 0
5.
2 0
Always follow the number with a zero after the decimal is written.
DECIMALS TO FRACTIONS
1.42 CAN BE WRITTEN AS A MIXED FRACTION. KEEP THE WHOLE NUMBER 1 AND WRITE .42 AS A DECIMAL, FORTY-TWO HUNDREDTHS.
1 42/100
SIMPLIFY
42
100
2 ∙ 3 ∙ 7
2 ∙ 2 ∙ 5 ∙ 5
21
50
Final answer: 1 21/50
11
ASSIGNMENT
• PAGE 55 (24 – 48) EVENS
• PAGE 59 (8 – 34) EVENS ALSO 35 BUT USE THE FOLLOWING A = -4 AND B = 12
• 28 PROBLEMS TOTAL
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