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When do you need to find the Least common denominator in a problem?
Wiki User
∙ 14y ago
Least common denominators or LCDs are very important when adding fractions.
For example, if we want to add 1/2 and 1/3 we need to make them look the same. That is to say we can only add like things. So we find the LCD which is 6 in this case. 1/2 is 3/6 and 1/3 is 2/6. Now we can add these and we have 5/6.
Without the LCD we could not add these or many other fractions.
We extend this idea when we add rational expressions.
Wiki User
∙ 14y ago
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Is it always necessary to find the least common denominator to compare the sizes of fractions?
When comparing fractions you must find a common denominator; by finding the least common denominator it will keep the numbers (numerators and denominator) smaller .
Find the least common denominator for fractions with denominators 9 12 and 16?
The least common denominator is 144.
How do you find the least common denominator of a set of unlike fractions?
least common denominator is nothing but least common multiple of denominators.
Find the least common denominator for fractions with denominators 9 12 16?
The least common denominator of 9, 12, and 16 is 144.
How do you compare dissimilar fraction?
Find the least common denominator.
What is the least common denominator of 9?
You need at least two numbers to find a common denominator.
Is it always necessary to find the least common denominator to compare the sizes of fractions?
When comparing fractions you must find a common denominator; by finding the least common denominator it will keep the numbers (numerators and denominator) smaller .
Find the least common denominator for fractions with denominators 9 12 and 16?
The least common denominator is 144.
How do you find the common denominator of 3 fractions?
Pick two of the fractions and find the Least Common Multiple of those two denominators. Then take that number, and find the Least Common Multiple between that and the third denominator. This number will be the Least Common Denominator between the three fractions.If you don't care to find the Least common denominator, then just take the three denominators, and multiply them together.
How do you find the least common denominator of a set of unlike fractions?
least common denominator is nothing but least common multiple of denominators.
What is the least common denominator of 19over20?
That's one fraction. You need at least two to find something in common between them.
Find the least common denominator?
The way that you can find the least common denominator is by first multiplying the 2 bottom numbers and whatever the product is that is your common denominator. to find the smallest one, you have to keep dividing it till it is in counting order or there is an odd number.
Find the least common denominator for fractions with denominators 9 12 16?
The least common denominator of 9, 12, and 16 is 144.
What is Least Common Denominator of 150?
You need at least two numbers to find something in common.
What is the least common denominator of 6?
You need at least two numbers to find something in common.
What is the least common denominator of one sixth?
You need at least two denominators to find something in common between them.
How do you compare dissimilar fraction?
Find the least common denominator.
