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To add and subtract fractions, you need common denominators. To find the common denominator, take the LCM of the denominators you wish to add or subtract.

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โˆ™ 2012-09-03 09:42:07
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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: How are lcm's used in adding or subtracting fractions?
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Related questions

What is the least common multiple used for?

It helps with the adding and subtracting of fractions.


How is the least common multiple used when adding and subtracting fractions?

When adding and subtracting unlike fractions, find the LCM of the denominators and convert them to it. In this case, it's called the least common denominator, but it's the same process.


How is the LCM used in everyday life?

When adding or subtracting fractions with different denominators the LCD is found with the LCM.


What is the use of LCM?

When adding or subtracting unlike fractions, the LCM process is used to find the least common denominator.


What type of problems can be used using the least common multiple?

Anything having to do with adding or subtracting unlike fractions.


What is a calculater used for?

A calculator is used for adding, subtracting, dividing, multiplying, decimals, or fractions and is also used for a lot of other uses too.


How do you know when to use common factors or common multiples to solve a problem?

When reducing fractions to their lowest terms the HCF is used When adding or subtracting fractions with different denominators the LCM is used


How you use the least common multiple?

When adding or subtracting unlike fractions, the LCM process is used to find the least common denominator.


Butterfly Method?

Used for adding dissimilar fractions


When would you apply gcf instead of lcm?

GCF is used for factoring terms, possibly in solving equations. LCM is used to find a common denominator when adding or subtracting fractions.


What is least common multiple used for?

When adding or subtracting fractions with different denominators then the least common multiple amongst them is needed to find the lowest common denominator.


Is Least Common Denominator used for subtracting fractions?

Yes.

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