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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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โˆ™ 2012-09-03 09:43:04
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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.


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

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


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 are adding fractions different?

When adding or subtracting fractions their denominators must be the same


Who invented adding and subtracting fractions?

Me


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.


How are adding and subtracting fractions similar?

Subtracting a fraction is the same as adding its negative.


What are the rules for adding fractions?

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


Before adding or subtracting two fractions they are converted into like fractions Explain with examples why this is necessary?

Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.


Why is it helpful to write a number as a product of primes?

Because it helps in reducing fractions to their simplest terms and finding the lowest common denominator when adding or subtracting fractions


What is accomplished by factoring?

Reducing fractions to their lowest terms by finding their highest common factor of the numerator and denominator When adding or subtracting fractions with different denominators by finding their lowest common multiple


How do you solve all fractions problems?

You basically have to learn separately how to do different things with fractions, including finding a common denominator; converting fractions to a different denominator; simplifying fractions; adding and subtracting fractions; multiplying fractions; dividing fractions.


What is the relationship between the LCM and LCD?

When adding or subtracting fractions with different denominators you must find their LCD and this done by finding their LCM


What did you learn from adding and subtracting fractions?

I learned to always change the denominators before adding or subtracting the numerators. You must always have a common denominator before adding or subtracting.


Why is it helpful to write a number as a product of prime?

When adding or subtracting fractions with different denominators finding the prime product of each denominator helps in finding the lowest common denominator of the given fractions by their lowest common multiple.


What types of problems can be solved using the greatest common factor and what types of problems can be solved using the least common multiple.?

Finding the GCF will help in simplifying fractions. Finding the LCM will help in adding and subtracting fractions.


Adding and subtracting fractions?

Pulled and mulled


Why is greatest common factor in math helpful?

Finding the GCF helps to reduce fractions to their simplest form. Knowing the GCF can help to find the LCM, which assists in adding and subtracting fractions.


How is subtracting fractions like adding fractions?

You need a common denominator for both.


Before adding or subtracting Why are fractions turned into like fractions?

They have to have the same denominator.


What are the rules for adding subtracting multiplying and dividing fractions?

no answer


When adding or subtracting fractions you must get a?

A Common Denominator