Q: Why does the denominator has to be the same?

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The same numerator as which numerator and the same denominator as which denominator?

The answer depends on what the denominator has to be the same as!

Yes you have to add with the same denominator. when ever you do fractions they have to have the same denominator no matter what. So thats a yes

Yes you make same denominator

Like denominator is the same denominator as the nonzero numbers.

multiply denominator by denominator and vice versa

common denominator

you find the common denominator

The numerator of the answer is the result of subtracting the numerators of the fractions, and the denominator of the fraction is the same as the common denominator.

Yes because the numerator will not be right if the denominator doesn't have the same as the other denominator which will mess up the answer

when you divide the numerator and denominator by the same factor

It don't have to be the same

exactly you got it you dont need help :)

Like Fractions

A "common denominator"

Essentially the same way as you would do an ordinary division.If the numerator and denominator have the same sign then the answer is positive.If the numerator and denominator have different signs then the answer is negative.Essentially the same way as you would do an ordinary division.If the numerator and denominator have the same sign then the answer is positive.If the numerator and denominator have different signs then the answer is negative.Essentially the same way as you would do an ordinary division.If the numerator and denominator have the same sign then the answer is positive.If the numerator and denominator have different signs then the answer is negative.Essentially the same way as you would do an ordinary division.If the numerator and denominator have the same sign then the answer is positive.If the numerator and denominator have different signs then the answer is negative.

The denominator should be the same as the denominator of the fraction.

That's a "common" denominator. "Common" means "same for both" or "same for all".

If they have the same denominator, then (assuming the denominator is positive), igbore the denominator for determining the order. That is, order the numbers by their numerators. In the unlikely event that the denominator is negative, the above method will give the reverse order.

Multiply the numerator and the denominator by the same number or divide the numerator and the denominator by the same number

Fractions with the same denominator are referred to as fractions having a common denominator.

no i doesnt have to be the same

That's a common denominator.

Common denominator

You can compare the denominators.If the numerators are the same, the fraction with the bigger denominator has the smaller value.You can compare the denominators.If the numerators are the same, the fraction with the bigger denominator has the smaller value.You can compare the denominators.If the numerators are the same, the fraction with the bigger denominator has the smaller value.You can compare the denominators.If the numerators are the same, the fraction with the bigger denominator has the smaller value.

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