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Math is all about getting the most precise answer. You could reduce the fraction 8/12 to 4/6 but if you know that the GCF of 8 and 12 is 4, you can take 4 out of both of those and get 2/3, the simplest form. This makes a larger difference as numbers get larger.

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Q: Why is greatest common factor used?
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Related questions

Where is greatest common factor use?

The greatest common factor is used to reduce fractions.


Greatest common factor of 25?

A single number cannot have a greatest common factor. A greatest common factor is used to compare two or more numbers.


What is the greatest common factor of35?

A Greatest Common Factor (GCF) is used to compare two or more numbers. A single number cannot have a Greatest Common Factor.


What is the greatest common factor of 720?

You need at least two numbers to find a GCF.


The greatest factor that two or more numbers have common is the greatest common factor or what?

The greatest factor that two or more numbers have in common is known as the greatest common factor, or GCF.


What does cancel any common factors in fractions?

Simplification using the greatest common factor does.Simplification using the greatest common factor does.Simplification using the greatest common factor does.Simplification using the greatest common factor does.


What is the greatest common factor for 28?

There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.


What is the greatest common factor of 32x?

There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor is the largest factor common to two or more numbers.


The greatest common factor of 32 and 24?

The Greatest Common Factor (GCF) is: 8


What is the greatest common factor of 38 and 4?

The greatest common factor is 2


What are the greatest common factor for 42 and 12?

The greatest common factor of 42 and 12 is 6.


Is the greatest common factor how many of each type?

No. The Greatest Common Factor (GCF) is the greatest factor that is in common with the numbers you are given.