Add and Subtract Unlike Fractions

Flashcard
•
Mathematics
•
5th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an unlike fraction?
Back
Unlike fractions are fractions that have different denominators.
Tags
CCSS.3.NF.A.1
CCSS.3.NF.A.2B
2.
FLASHCARD QUESTION
Front
How do you find the least common denominator (LCD) of two fractions?
Back
To find the least common denominator, identify the least common multiple (LCM) of the denominators of the fractions.
3.
FLASHCARD QUESTION
Front
What is the first step in adding unlike fractions?
Back
The first step is to find the least common denominator (LCD) for the fractions.
Tags
CCSS.7.NS.A.1C
4.
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 make the denominators equal to the least common denominator.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
5.
FLASHCARD QUESTION
Front
What is the formula for adding two fractions?
Back
The formula for adding two fractions a/b and c/d is (a*d + b*c) / (b*d).
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
6.
FLASHCARD QUESTION
Front
What is the formula for subtracting two fractions?
Back
The formula for subtracting two fractions a/b and c/d is (a*d - b*c) / (b*d).
Tags
CCSS.7.NS.A.1C
7.
FLASHCARD QUESTION
Front
What is the result of 3/5 + 1/4?
Back
The result is 17/20.
Tags
CCSS.7.NS.A.1C
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