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Q: What common denominator can 9 11 and 10 go into?

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143

Since 11 is a prime number and does not evenly go into 28 or 2, then the least and only common denominator is 1.

The Least (or Lowest) Common Multiple (LCM) is the smallest number that is a multiple of both numbers. For example: the LCM of 10 and 4 is 20, because both 10 and 4 go into 20 and 20 is the smallest number both 10 and 4 can go into. To be able to add or subtract fractions they must have the same denominator. If the denominators are different then the fractions must first be converted into equivalent fractions with a common denominator; any common denominator can be used, but by using the Least Common Multiple of the denominators as the new denominator it keeps the numbers smaller; this smallest denominator is known as the Least Common Denominator Thus the Least Common Denominator is the Least Common Multiple of the denominators of two (or more) fractions (used when adding or subtracting fractions with different denominators). As the Least Common Multiple is used most often with adding or subtracting fractions, it is often referred to as the Least Common Denominator (because the numbers being considered are usually denominators of fractions).

There is no exact least common denominator. Six does not go into 38

Least common denominators are the smallest denominator you can go without the numerator being a fraction or decimal. 12/20 can be defined as 6/10 or 3/5, depending on the problem.

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19/33To solve this, first you have to convert both fractions to a common denominator by multiplying by the opposite's denominator. ex:10/11-1/3 multiply the whole fraction 10/11 by 3 and get 30/33. Multiply the whole fraction 1/3 by 11 and get 11/33. So, you want to get both fractions to have the same bottom number to solve. Go from here: 30/33-11/33=

To find a common denominator, it's what 4 and 7 go into, and that's 28.

126

Their lowest common multiple is 330

Answer: 120Explanation:To find the least common denominator of 4,8,6 and 10 we need the least common multiple of those numbers.Look at the multiples of 10. The first one that is also a multiple of 8 is 40. This does not work for 6, we so continue. The next one is 80. Once again 6 does not go into 80 evenly.We need 120 since it is a multiple of 10, 6, 4 and 8.

You search for any common denominator between the numerator (top) and the denominator (bottom). If the common factor is larger than 1, you divide both by that number. Then look again for a common denominator.You can avoid repeatedly looking for common denominators if you go for the greatest common denominator.

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