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Because if you have the same denominator then you don't have to find the common denominator.

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13y ago

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Related Questions

How do you simplify an added fraction?

If you make the donominator the same you will add the numberator but not the dinominator


What is common donominator?

Common denominator refers to an equation that involves two fractions that have the same number on the bottom portion of the fraction. Ex: 1/4 + 2/4 = 3/4


How to subtract a fraction from a whole number?

Change the whole number into an improper fraction with the same denominator as the fraction and then subtract accordingly


How do you subtract a negative fraction from a negative fraction?

In the same way that you would answer a fraction subtract another fraction. The result could be either positive or negative, just as is the case with negative whole numbers.


How do you subtract mixed numbers and improper fraction?

First you would want to change the mixed number to an improper fraction. Then you can subtract


How do you subtract fraction if the if the numerators is the same?

You first have to convert the fractions so that the denominators are the same.


How is subtracting fraction when numerator and denominator is the same?

If the numerator and denominator are the same, the fraction simplifies to 1. And you should be able to subtract 1!


How do you subtract dissimilar mixed fraction?

To subtract dissimilar mixed fractions, first convert each mixed fraction into an improper fraction. Next, find a common denominator for the improper fractions. Once you have a common denominator, subtract the numerators and keep the denominator the same. Finally, if needed, convert the result back into a mixed fraction.


How do you subtract fractions without mixed numbers?

First, turn the fraction into a improper fraction. Then find a common denominator between the two numbers. After this, subtract strait across, but leave the denominator the same.


What do you need to add 4 5 to make one whole one?

I suppose you mean the fraction 4/5. Just subtract 1 - 4/5, which is the same as 5/5 - 4/5.I suppose you mean the fraction 4/5. Just subtract 1 - 4/5, which is the same as 5/5 - 4/5.I suppose you mean the fraction 4/5. Just subtract 1 - 4/5, which is the same as 5/5 - 4/5.I suppose you mean the fraction 4/5. Just subtract 1 - 4/5, which is the same as 5/5 - 4/5.


How do you subtract fractions with negative fractions?

Subtracting a negative fraction is the same as adding its positive equivalent.


How do you borrow when subtracting a fraction?

If you have common denominators, then you subtract the numerators of the fraction in the same way you do any other numbers. So yes you can borrow.