splash screen. lesson menu five-minute check (over lesson 4–1) main idea and vocabulary example...
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![Page 1: Splash Screen. Lesson Menu Five-Minute Check (over Lesson 4–1) Main Idea and Vocabulary Example 1:Write Equivalent Fractions Example 2:Write Equivalent](https://reader035.vdocuments.mx/reader035/viewer/2022070410/56649efe5503460f94c12ec4/html5/thumbnails/1.jpg)
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Five-Minute Check (over Lesson 4–1)
Main Idea and Vocabulary
Example 1:Write Equivalent Fractions
Example 2:Write Equivalent Fractions
Example 3:Write Fractions in Simplest Form
Example 4:Express Fractions in Simplest Form
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• Express fractions in simplest form.
• equivalent fractions
• simplest form
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Write Equivalent Fractions
Replace the ■ with a number so the fractions are equivalent.
■
Answer: 24
Since 13 × 4 = 52, multiply the numerator and denominator by 4.
×4
×4
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
■
A. 25
B. 30
C. 35
D. 40
Replace the ■ with a number so the fractions are equivalent.
![Page 6: Splash Screen. Lesson Menu Five-Minute Check (over Lesson 4–1) Main Idea and Vocabulary Example 1:Write Equivalent Fractions Example 2:Write Equivalent](https://reader035.vdocuments.mx/reader035/viewer/2022070410/56649efe5503460f94c12ec4/html5/thumbnails/6.jpg)
Write Equivalent Fractions
Replace the ■ with a number so the fractions are equivalent.
Since 24 ÷ 8 = 3, divide the numerator and denominator by 8.
■
Answer: 5
÷8
÷8
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1. A
2. B
3. C
4. D0% 0%0%0%
■
A. 5
B. 6
C. 7
D. 8
Replace the ■ with a number so the fractions are equivalent.
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Write Fractions in Simplest Form
Method 1 Divide by common factors.
Write in simplest form.
÷2
÷2
÷7
÷7
A common factor of 14 and 42 is 2.
A common factor of 7 and 21 is 7.
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Write Fractions in Simplest Form
Method 2 Divide by the GCF.
factors of 14: 1, 2, 7, 14factors of 42: 1, 2, 3, 6, 7, 14, 21, 42
The GCF of 14 and 42 is 14.
Divide the numerator and denominator by the GCF, 14.
Answer: Since the GCF of 1 and 3 is 1, the fraction is in simplest form.
÷14
÷14
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
Write in simplest form.
A.
B.
C.
D.
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The GCF of 16 and 168 is 8.
Express Fractions in Simplest Form
GYMNASTICS Lin practices gymnastics 16 hours each week. There are 168 hours in a week. Express
the fraction in simplest form.
Answer: So, Lin practices gymnastics for or 2 out of every 21 hours of the week.
Mentally divide both the numerator and denominator by 8.
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
TRANSPORTATION There are 244 students at Longfellow Elementary School. Of those students, 168 ride a school bus to get to school. Express thefraction in simplest form.
A. B.
C. D.
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End of the Lesson
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Five-Minute Check (over Lesson 4–1)
Image Bank
Math Tools
Animation Menu
Greatest Common Factor
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4-2 Equivalent Fractions
4-9 Ordered Pairs and Functions
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
A. 3
B. 5
C. 7
D. 9
Find the GCF of 15 and 21.
(over Lesson 4-1)
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
A. 30
B. 12
C. 10
D. 6
Find the GCF of 12 and 30.
(over Lesson 4-1)
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
A. 3
B. 5
C. 15
D. 25
Find the GCF of 15 and 75.
(over Lesson 4-1)
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
A. 7
B. 6
C. 3
D. 2
Find the GCF of 12, 42, and 60.
(over Lesson 4-1)
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
A. 6
B. 9
C. 11
D. 18
Find the GCF of 36, 54, and 198.
(over Lesson 4-1)
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1. A
2. B
3. C
4. D
A B C D
0% 0%0%0%
A. 5
B. 10
C. 15
D. 25
Which number can divide into 25, 40, and 100?
(over Lesson 4-1)
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