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Earn +20 ptsQ: Does a common denominator have to be the same denominator?
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How are a common denominator and a common multiple different?
They are essentially the same. A common denominator is the common multiple of a set of denominators of a set of fractions.
Are The greatest common divisor and the least common denominator the same?
No.
How do you change a fraction so they have the same denominator?
First, find a common denominator for the two (or more) fractions. Then, for each fraction, multiply numerator and denominator by the same number (different numbers for different fractions, though), to convert to the common denominator.
What do you do to the numerator in a lowest common denominator problem?
Multiply the numerator of the fraction by the same amount that you multiply the denominator of that fraction.
How do you solve a fraction problem when you don't have the same denominator?
If you are adding or subtracting unlike fractions, convert them to equivalent fractions with a common denominator.
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