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Numerators and denominators are whole numbers; taking their GCF helps to reduce a fraction to its simplest form. In the fraction 3/9, the GCF of 3 and 9 is 3. Dividing both numbers by 3 results in 1/3, the simplest form of 3/9.

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11y ago
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14y ago

Suppose a fraction is written, not in its simplest form, as a/b.

Suppose the gcf of a and b is c.

Then since c is a common factor of a abd b, a = c*x and b = c*y for some x and y, and since c is the greatest such factor, x and y have no common factor.

So a/b = cx/cy = x/y and the latter is the simplest form.

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11y ago

If the numerator is a factor of the denominator, it is automatically the GCF of the pair.

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7y ago

Find the GCF of the numerator and the denominator and divide them both by it. If the GCF is 1, the fraction is already in its simplest form.

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7y ago

Find the GCF of the numerator and the denominator and divide them both by it. If the GCF is 1, the fraction is in its simplest form.

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10y ago

It's not. It can be used for reducing them after they've been multiplied.

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11y ago

When the numerator is a factor of the denominator.

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8y ago

When you are trying to reduce a fraction, if you divide the numerator and the denominator by their GCF, you will end up with a fraction in its simplest form.

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Q: What is the greatest common factor of the numerator and the denominator?
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What is the expression in lowest terms?

An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.


How can the greatest common factor help you write a fraction in simplest form?

Find the greatest common factor between the numerator and the denominator, then divide the numerator by greatest common factor and then divide denominator by greatest common factor, for a new simplified fraction.


What circumstances would the greatest common factor be equal to numerator?

If the numerator was a factor of the denominator.


What is the greatest common factor of the numerator 5 and the denominator?

We will need a value for the denominator to answer that.


What is the circumstances that the Greatest Common Factor be equal to the numerator of a fraction before simplifying?

When the numerator is a factor of the denominator.


What is it when the greatest common factor of the numerator and denominator is one?

simplest form


How to simplify fractions?

Find the Greatest Common Factor of the numerator and denominator, then divide the numerator by the GCF, and that is the new numerator. Divide the denominator by the GCF, and that is the new denominator.


What is the form of a fraction in which the numerator and denominator have only 1 as their common factor?

The fraction is said to be in its lowest terms when the greatest common factor of the numerator and denominator is 1


Under what circumstances would the greatest common factor be equal to the numerator of a fraction before simplifying?

If the numerator is a factor of the denominator.


Is a fraction with the numerator and denominator have the Greatest Common Factor of 1?

A fraction where the numerator and denominator have a GCF of 1 is said to be in its simplest form.


If a fraction is not in simplest form can the greatest common factor of the numerator and the denominator be 1?

No.


Numerator and denominator have a greatest common factor of 1?

Then the fraction is in its simplest form.