Adding and Subtracting Mixed Numbers with Unlike Denominators

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Mathematics
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Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is a mixed number?
Back
A mixed number is a whole number combined with a proper fraction, such as 2 1/2.
Tags
CCSS.3.NF.A.3C
2.
FLASHCARD QUESTION
Front
How do you convert a mixed number to an improper fraction?
Back
To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that result over the original denominator.
3.
FLASHCARD QUESTION
Front
What is the first step in adding mixed numbers with unlike denominators?
Back
The first step is to find a common denominator for the fractions.
Tags
CCSS.7.NS.A.1C
4.
FLASHCARD QUESTION
Front
How do you find a common denominator for two fractions?
Back
To find a common denominator, determine the least common multiple (LCM) of the two denominators.
5.
FLASHCARD QUESTION
Front
What is the process for subtracting mixed numbers?
Back
1. Convert mixed numbers to improper fractions. 2. Find a common denominator. 3. Subtract the fractions. 4. Convert back to a mixed number if necessary.
Tags
CCSS.7.NS.A.1C
6.
FLASHCARD QUESTION
Front
What is the least common multiple (LCM)?
Back
The least common multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the numbers.
7.
FLASHCARD QUESTION
Front
How do you simplify a fraction?
Back
To simplify a fraction, divide the numerator and the denominator by their greatest common divisor (GCD).
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