add/subtract fractions
Flashcard
•
Mathematics
•
5th - 6th Grade
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is a common denominator?
Back
A common denominator is a number that can be used as a denominator for two or more fractions, allowing them to be added or subtracted.
2.
FLASHCARD QUESTION
Front
How do you find a common denominator for 1/5 and 5/6?
Back
The least common multiple (LCM) of the denominators 5 and 6 is 30, so 30 is a common denominator.
3.
FLASHCARD QUESTION
Front
What is the sum of 1/2 + 1/3 + 1/5?
Back
The sum is 31/30.
4.
FLASHCARD QUESTION
Front
What do you need to add or subtract fractions?
Back
You need common denominators to add or subtract fractions.
5.
FLASHCARD QUESTION
Front
What is a common denominator for 1/2, 1/3, and 1/4?
Back
The least common multiple of 2, 3, and 4 is 12.
6.
FLASHCARD QUESTION
Front
How do you add fractions with different denominators?
Back
Convert them to have a common denominator, then add the numerators.
7.
FLASHCARD QUESTION
Front
What is the first step in adding 5/9 and 1/6?
Back
Find a common denominator, which is 18.
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