Adding and Subtracting Fractions
Flashcard
•
Mathematics
•
5th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the process for adding fractions with different denominators?
Back
To add fractions with different denominators, first find the least common denominator (LCD). Convert each fraction to an equivalent fraction with the LCD, then add the numerators and keep the denominator the same.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
2.
FLASHCARD QUESTION
Front
How do you subtract fractions with different denominators?
Back
To subtract fractions with different denominators, find the least common denominator (LCD). Convert each fraction to an equivalent fraction with the LCD, then subtract the numerators and keep the denominator the same.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
3.
FLASHCARD QUESTION
Front
What is a Least Common Denominator (LCD)?
Back
The Least Common Denominator (LCD) is the smallest multiple that two or more denominators share. It is used to convert fractions to have a common denominator for addition or subtraction.
4.
FLASHCARD QUESTION
Front
How do you find the Least Common Denominator of 1/5 and 2/10?
Back
The denominators are 5 and 10. The least common multiple of 5 and 10 is 10, so the LCD is 10.
5.
FLASHCARD QUESTION
Front
What is the first step in adding mixed numbers?
Back
Convert the mixed numbers to improper fractions before adding them.
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
6.
FLASHCARD QUESTION
Front
How do you convert a mixed number to an improper fraction?
Back
Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.
7.
FLASHCARD QUESTION
Front
What is the result of adding 10 3/4 and -7 1/4?
Back
The result is 3 1/2.
Tags
CCSS.7.NS.A.1C
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