What is the first step in adding or subtracting fractions with unlike denominators?
Adding and Subtracting Fractions with Unlike Denominators

Flashcard
•
Mathematics
•
5th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Find the least common denominator (LCD) for the fractions.
2.
FLASHCARD QUESTION
Front
How do you find the least common denominator (LCD) of two fractions?
Back
Identify the least common multiple (LCM) of the denominators.
3.
FLASHCARD QUESTION
Front
What is the formula for adding fractions with unlike denominators?
Back
Convert each fraction to an equivalent fraction with the LCD, then add the numerators.
4.
FLASHCARD QUESTION
Front
What is the formula for subtracting fractions with unlike denominators?
Back
Convert each fraction to an equivalent fraction with the LCD, then subtract the numerators.
5.
FLASHCARD QUESTION
Front
If you have the fractions 1/3 and 1/4, what is their least common denominator?
Back
The least common denominator is 12.
6.
FLASHCARD QUESTION
Front
What is the result of adding 1/3 and 1/4?
Back
The result is 7/12.
7.
FLASHCARD QUESTION
Front
What is the result of subtracting 1/5 from 8/15?
Back
The result is 1/3.
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