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You need a common denominator in order to add or subtract fractions.

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12y ago
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Q: What you need to add or subtract fractions?
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Related questions

How do you add and subtract fractions with the same denominator?

it stay the same when you subtract fractions and when you add fractions.

Do you need to add whole numbers when subtracting fractions?

add? dont you mean subtract?

How do you add and subtract dissimilar fractions?

Make the fractions equivalent then subtract

Why do fractions need to have a common denominator before add or subtract them?

because it would be diffcult to understand.[you don't add or subtract the demonters]

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

To add and subtract fractions, you need common denominators. To find the common denominator, find the LCM of the denominators you wish to add or subtract.

Why do you need to use common denominator?

To get the right answer when you add or subtract unlike fractions.

What are compatible numbers for fractions?

I am not entirely sure what you mean, but if you need to add, subtract, or compare two fractions, they need to have the same denominator.

Do you add and subtract like and unlike fractions in the same way?

no, to add and subtract like and unlike fractions the denominator has to be the same,

How do you add two fractions that have like denominators?

In fractions, you can NEVER add or subtract

Why do fractions need to have common denominator before you add or subtract them simple answer pleas?

So that you only have to add/subtract the numerator which makes it much easier.

How do you add and subtract fractions in math?

You need common denominators. Then add or subtract the numerators. If the answer is an improper fraction it is common practice to reduce it to a mixed number.

What is the meaning of addition and subtraction of similar fraction?

Similar fractions are fractions with the same denominator. In order to add or subtract fractions they need to be similar.