Adding and Subtracting unlike fractions

Flashcard
•
Mathematics
•
3rd - 5th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What are unlike fractions?
Back
Fractions that have different denominators.
Tags
CCSS.3.NF.A.1
CCSS.3.NF.A.2B
2.
FLASHCARD QUESTION
Front
Can you add unlike fractions directly?
Back
No, you cannot add unlike denominators without finding a common denominator.
Tags
CCSS.7.NS.A.1C
3.
FLASHCARD QUESTION
Front
What is a common denominator?
Back
A common denominator is a number that is a multiple of the denominators of two or more fractions.
4.
FLASHCARD QUESTION
Front
How do you find the least common denominator (LCD)?
Back
The least common denominator is the smallest multiple that two or more denominators share.
5.
FLASHCARD QUESTION
Front
What is the first step in adding unlike fractions?
Back
Find the least common denominator (LCD) for the fractions.
Tags
CCSS.7.NS.A.1C
6.
FLASHCARD QUESTION
Front
If you have 1/4 and 1/6, what is the least common denominator?
Back
The least common denominator is 12.
7.
FLASHCARD QUESTION
Front
How do you convert fractions to have a common denominator?
Back
Multiply the numerator and denominator of each fraction by the necessary factor to reach the common denominator.
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