using prime factorization monday, august 25, 2014
TRANSCRIPT
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