Chapter 1 Lesson 3 Equivalent Fractions Pages 18-19 1-9 odd Created By: Cindy Smith, OMSD
Chapter 1 Lesson 3
Jan 04, 2016
Chapter 1 Lesson 3. Equivalent Fractions Pages 18-19 1-9 odd Created By: Cindy Smith, OMSD. 3 Column Notes – Chap. 1 Lesson 3. Main Ideas/Cues: fraction numerator denominator. Details: A number of the form where both a and b are integers and b ≠ 0. - PowerPoint PPT Presentation
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Chapter 1 Lesson 3
Equivalent Fractions
Pages 18-19
1-9 odd
Created By: Cindy Smith, OMSD
3 Column Notes – Chap. 1 Lesson 3
Main Ideas/Cues:fraction
numerator
denominator
Details:A number of the form
where both a and b are integers and b ≠ 0.
The number a in the fraction
The number b in the fraction where b ≠ 0.
Picture/Example: and are
fractions.
The numerator of is 7.
The denominator of is 13.
b
a
7
5
10
18
b
a 13
7
b
a13
7
3 Column Notes – Chap. 1 Lesson 3
Main Ideas/Cues:Equivalent
fractions
Simplest form
Details:Fractions that represent the
same part-to-whole relationship. Equivalent fractions have the same simplest form.
A fraction is in simplest form if its numerator and denominator have a greatest common factor of 1.
Picture/Example: and are
equivalent fractions that both represent
The simplest form of the fraction
is
8
6
12
9
4
3
4
3
8
6
Problem #1 – Column 1
First Step: Write the Problem
1. Write two equivalent fractions that represent the fraction of eggs that are cracked.
Problem #1 – Column 2
Second Step: Write the Problem
1. 2 out of 12 eggs are cracked.
Problem #1 – Column 2
Third Step: Rewrite as a fraction
1. 2 out of 12 eggs are cracked.
2
12
Problem #1 – Column 2
Third Step: Rewrite as a fraction
1. 2 out of 12 eggs are cracked.
2
12
Problem #2
Problem #2
Final Step: List all the factors of the number, from least to greatest.
2. 32 = 1 x 32
= 2 x 16
= 4 x 8
1, 2, 4, 8, 16, and 32
Problem #4
Directions: Write all the factors of the number
First Step: Write the Problem
4. 23
Problem #4
Second Step: Write all the factors of the number.
4. 23 = 1 x 23
Problem #4
Final Step: List all the factors of the number, from least to greatest.
4. 23 = 1 x 23
1 and 23
Problem #6
Directions: Tell whether the number is prime or composite
First Step: Write the Problem
6. 81
Problem #6
Second Step: Write all the factors of the number.
6. 81 = 1 x 81
= 3 x 27
= 9 x 9
Problem #6
Final Step: Tell whether the number is prime or composite.
6. 81 = 1 x 81
= 3 x 27
= 9 x 9
Composite
Problem #8
Directions: Tell whether the number is prime or composite
First Step: Write the Problem
8. 79
Problem #8
Second Step: Write all the factors of the number.
8. 79 = 1 x 79
Problem #8
Final Step: Tell whether the number is prime or composite.
8. 79 = 1 x 79
Prime
Problem #10
Directions: Use a factor tree to write the prime factorization of the number.
First Step: Write the Problem
10. 48
Problem #10
Second Step: Create the factor tree
10. 48
2 x 24
2 x 12
2 x 6
2 x 3
Problem #10
Final Step: Write the prime factorization (remember to use exponents)
10. 48 = 2 x 2 x 2 x 2 x 3 = 24 x 3
Problem #12
Directions: Use a factor tree to write the prime factorization of the number.
First Step: Write the Problem
12. 75
Problem #12
Second Step: Create the factor tree
10. 75
3 x 25
5 x 5
Problem #12
Final Step: Write the prime factorization (remember to use exponents)
12. 75 = 3 x 5 x 5 = 3 x 52
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