

Common Denominators
Presentation
•
Mathematics
•
5th - 8th Grade
•
Hard
Joseph Anderson
FREE Resource
4 Slides • 8 Questions
1
Common Denominator Fractions

2
Poll
When we add and subtraction fractions, do we have to have common denominators (same numbers on the bottom of the fraction)?
Yes
No
Don't Know
Fractions?
3
Poll
Common denominators means that both fractions have different numbers on the bottom of the fraction?
Yes, different denominators
No, same denominators
Denominators, what are those?
Handley, what?
4
5
Add & Subtract Fractions - Common Denominators
Add the numerators (top numbers)
Add the denominators (bottom numbers)
6
Poll
What happens when the numerator is a bigger number than the denominator?
Handley, what?
We divide the numerator (top number) by the denominator (bottom number)
Not sure
We do not need to do anything - the answer is correct!
7
Improper Fractions
Divide the numerator by the denominator. Example in picture: 16 divided by 6. 6 only goes into 16 twice, with some with 4 left over (remander)!
2 becomes our whole number.
4, the remainder, becomes our new numerator.
6 stays our denominator.
8
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9
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10
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11
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12
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Common Denominator Fractions

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