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

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2012-09-03 09:43:04
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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 is finding the LCM revelant when adding and subtracting fractions?
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Related questions

What are the reasons for finding the LCM?

Finding the LCM helps in the process of adding and subtracting unlike fractions.

What type of problems can be solve by finding the LCM?

Finding the LCM will make adding and subtracting fractions easier.

What is the definition of adding and subtracting fractions with unlike denominators?

What is the definition of Adding and Subtracting Like Fractions

Why do you find the LCM of numbers?

Finding the LCM helps in the process of adding and subtracting unlike fractions.

How does finding the least common multiple help you add fractions?

Because when adding or subtracting fractions the denominators must have the same values

How are adding and subtracting fractions similar?

Subtracting a fraction is the same as adding its negative.

How are adding fractions different?

When adding or subtracting fractions their denominators must be the same

What are the rules for adding fractions?

Ensure that the denominators are the same when adding or subtracting fractions.

What types of problems can be solved using the the LCM?

Anything having to do with adding or subtracting unlike fractions.

Who invented adding and subtracting fractions?


What is the purpose of finding the least common multiple?

The process of finding the LCM is the same as that of finding the least common denominator, which is necessary in the adding and subtracting of fractions.

How can knowing the LCM help you add subtract and multiply fractions?

When adding and subtracting unlike fractions, it is necessary to find the LCM of the denominators, called the least common denominator. Once you have found the LCD, you can convert the fractions to equivalent fractions with a common denominator and proceed with the adding and/or subtracting. Finding an LCM will have no effect on multiplying fractions.

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