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How do you use the LCM to write two or more fractions with a common denominator?
Wiki User
∙ 14y ago
The LCM is the common denominator. Consider 2/7 and 9/16 (random). The LCM of 7 and 16 is their product as they have no common factor ie 112. Th fractions become (2 x 16)/112 and (9 x 7)/112, ie 32/112 and 63/112. The sum of 2/7 and 9/16 is thus 95/112 Check this in decimals: 2/7 = 0.286, 9/16 = 0.5625 , total 0.8482; 95/112 = 0.8482. QED
Wiki User
∙ 14y ago
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When two or more fractions have the same denominator it is called what?
Common denominator
What is the least common denominator of 125?
There has to be a set of two or more fractions for a lowest common denominator.
What is a common multiple of the denominators of two or more fractions?
a common denominator
What ingredients are in adding fraction?
If you mean the steps, they are as follows:* Identify a common denominator. Any common denominator will do. * Convert both fractions to equivalent fractions, with the common denominator found in the previous step. (If the fractions start off with the same denominator, there is nothing else to do in these first two steps.) * Add the numerators. That's the numerator of the result. Copy the common denominator as the denominator of the result. * Check whether you can simplify the resulting fraction.
What 2 operations are used with lowest common denominator?
The least common denominator or (LCD) of two or more fractions is the least common multiple of the denominators.
A denominator that is the same in two or more fractions?
A "common denominator"
What is the least common multiple of the denominator of two or more fractions is their?
least common denominator
What is the denominator in the same in two or more fractions?
That's a common denominator.
When two or more fractions have the same denominator it is called what?
Common denominator
What is it called when The denominator is a common multiple of the denominators of two or more fractions?
the least common denominator
What is the least common denominator of 125?
There has to be a set of two or more fractions for a lowest common denominator.
What is a common multiple of the denominators of two or more fractions?
a common denominator
What is the LCM of the denominators of two or more fractions?
The least common multiple of two or more denominators is known as the least common denominator, or LCD.
Why do you need a common denominator?
Common Denominator means that the denominators in two (or more) fractions are common, or the same. The common denominator is important because before you can add or subtract fractions, the fractions need to have a common denominator.Sometimes fractions have different denominators, like 2/3 and 3/4. If you want to add or subtract them, they need to have the same denominator. In order to do that, you find a common denominator which is the same thing as a common multiple, only with denominators.
Denominator that is the same in two or more fractions?
That's a "common" denominator. "Common" means "same for both" or "same for all".
A common multiple of the denominators of two or more fractions?
the common denominator!
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.
