Simplifying Fractions
Presentation
•
Mathematics
•
5th - 7th Grade
•
Medium
Samantha Gothelf
Used 19+ times
FREE Resource
3 Slides • 4 Questions
1
Simplifying Fractions
2
When finding the smallest fraction, divide by a common factor.
Both the numerator and denominator must be divided by the same number
Example 4/10 both 4 and 10 have a common factor of 2 so divide both numbers by 2
4 divided by 2 is 2 and 10 divided by 2 is 5
Since 2 and 5 are both prime numbers. The fraction 2/5 is in simplest form
3
Tips
First look to see if both numbers are even. If they are you know you can divide by 2.
Use your divisibility rules to help you find factors
Do both the numbers end in zero? Divide by 10 instead of 2.
The larger the factor you divide by, the less times you will need to divide.
4
Multiple Choice
What number can you divide both the numerator and denominator by if your fraction is 10/15?
2
3
5
10
5
Multiple Select
Which numbers could you use to simplify 20/30? (Choose all that would simplify the fraction.)
2
5
10
15
6
Multiple Choice
What is the greatest common factor of 12 and 18?
2
3
6
9
7
Multiple Choice
What is the simplest form of 12/18?
6/9
4/6
2/3
12/18
Simplifying Fractions
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