Common Denominators
Flashcard
•
Mathematics
•
4th - 5th Grade
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a common denominator?
Back
A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
2.
FLASHCARD QUESTION
Front
How do you create an equivalent fraction?
Back
To create an equivalent fraction, multiply or divide both the numerator and denominator of the fraction by the same non-zero number.
Tags
CCSS.3.NF.A.3A
CCSS.3.NF.A.3B
CCSS.4.NF.A.1
3.
FLASHCARD QUESTION
Front
Why can't you add fractions with different denominators directly?
Back
You cannot add fractions with different denominators directly because they represent different parts of a whole; they must be converted to have a common denominator first.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
4.
FLASHCARD QUESTION
Front
What is the first step in adding or subtracting fractions?
Back
The first step is to find a common denominator for the fractions involved.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
5.
FLASHCARD QUESTION
Front
Can 9 be a common denominator for 1/3 and 7/9?
Back
Yes, because 9 is a multiple of both 3 and 9.
6.
FLASHCARD QUESTION
Front
What do you need to do after finding a common denominator?
Back
After finding a common denominator, you need to rewrite each fraction as an equivalent fraction with that common denominator.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
7.
FLASHCARD QUESTION
Front
What is the relationship between the numerator and denominator in equivalent fractions?
Back
In equivalent fractions, the ratio of the numerator to the denominator remains the same, even though the actual numbers may differ.
Tags
CCSS.3.NF.A.3A
CCSS.3.NF.A.3B
CCSS.4.NF.A.1
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