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Finding the lowest common denominator

Q: What is used in changing dissimilar fractions to similar fractions?

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The LCM is used for integers, not fractions. If you're trying to add unlike fractions, take the LCM of the denominators (known in this case as the least common denominator, or LCD), convert the fractions and proceed.

GCF doesn't apply to fractions, only to whole numbers. When those numbers are the numerator and denominator of a fraction, the GCF can be used to reduce it to its simplest form.

Fractions are infinitely dense and this means that between any two fractions there an infinite number of fractions. If any fraction, f, laid claims to being the nearest, there would be infinitely many fractions between 0 and f and so infinitely many fractions which were closer to 0. This means that f could not be the closest. The argument can be used again and again and so there cannot be a fraction closest to 0.

When subtracting one fraction to another, one or both fractions are renamed so that they have the same denominators. Then the result of the subtraction is the equal to the subtraction of the numerators divided by the common denominator.

Related questions

Used for adding dissimilar fractions

Fractions that are not equivalent are dissimilar fractions * * * * * The term is used more commonly to refer to fractions whose denominators are different.

Your words are too frequently used; please use a dissimilar word. Apples and oranges are too dissimilar for the purposes of this comparison.

The purpose of a router is to connect dissimilar networks.

fractions are used in almost everything we do

The most common types of bridges are the Beam and Arch Bridges.

1 Fractions are broken parts of whole integers or items2 Fractions have numerators above their denominators3 Fractions are separated by the solidus line4 Fractions can be multiplied and divided5 Fractions need a common denominator to be subtracted or added6 Fractions less than 1 are common fractions7 Fractions greater than 1 are improper fractions8 Fractions less than 0 are negative fractions9 Fractions can be equivalent as 1/2 = 4/810 Fractions can be simplified as 3/15 = 1/311 Fractions can be dissimilar as 3/8 is not 5/8 but they add up to 112 Fractions can be converted into percentages as 3/4 = 75%13 Fractions can be converted into decimals as 3/4 = 0.7514 Fractions can form part of a mixed number as in 3 and 3/415 Fractions are rational numbers16 Fractions can't be formed from irrational numbers17 Fractions were used by the ancient Romans to a limited extent as 1/2 = S18 Fractions can be converted into scientific notation as 1/1,000,000 = 1.0*10-619 Fractions are used in algebra: if 1/a+1/b = c then a+b = abc20 Fractions increase when divided and decrease when multiplied21 Fractions aren't frightful whence fathomed outQED by David Gambell

there are fractions in whole steps

There are three types of fractions that are used in mathematics. The three types of fractions are, mixed fractions, proper fractions, and improper fractions.

decimals are used for prices like $2.95 fractions can be used for data

fractions were first by aboriginal people and where first used in Africa..

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