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Q: How is finding the LCM revelant when adding and subtracting fractions?

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

Finding the LCM will make adding and subtracting fractions easier.

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

What is the definition of Adding and Subtracting Like Fractions

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

When adding or subtracting fractions their denominators must be the same

Me

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.

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.

Subtracting a fraction is the same as adding its negative.

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.

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

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

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.

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

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

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.

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

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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.

You need a common denominator for both.

They have to have the same denominator.

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A Common Denominator