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Algebra

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Q: Do you need to have a common denominator when subtracting?
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Related questions

Does division need a common denominator?

No, You only need a common denominator when adding or subtracting fractions.


Do you need a common denominator when subtracting fractions?

yes you should use a common denominator when subtracting with fractions, it makes it much easier.


Do you need a common denominator for dividing fractions?

No only when adding or subtracting fractions a common denominator is needed


Do you need a common denominator in subtracting fractions?

Yes.


Why do fractions need a common denominator before you add or subtract?

Because the answers will be wrong when adding or subtracting them if they don't have a common denominator.


Do you need a common denominator when multiplying?

Nope, just when adding or subtracting.


Do you need a common denominator when adding subtracting multiplying or dividing?

only when adding and subtracting


Why do fractions need to have a common denominator before subtracting or adding?

Because if there's no common denominator it'll be hard to simplify. And will cause you to get a headache.


How is subtracting fractions like adding fractions?

You need a common denominator for both.


What is lowest common denominator of 17?

A single number cannot have anything in common. To find a lowest common denominator, you need to be adding or subtracting at least two fractions.


Do you have to find a common denomiter in dividing fractions?

No, you only need a common denominator when adding or subtracting fractions.


Why do you have to have a common denominator?

A common denominator is needed when adding or subtracting fractions of different denominators.


How do you get a common denominator for subtracting fractions?

Just multiply the two denominators of your fractions, the answer you get is a common denominator.


When adding or subtracting two fractions with denominators that are not equal what is the first step you take?

The first step to take is find the lowest common denominator of the fractions which can be done by finding the lowest common multiple of the numbers.


When adding or subtracting fractions you must get a?

A Common Denominator


What is the rule of adding and subtracting different denominator?

Find the lowest common denominator by finding the lowest common multiple of the denominators


A common multiple of two or more denominators?

It is a common denominator: useful for adding or subtracting fractions.


What is always needed when adding and subtracting fractions?

a common denominator


Is Least Common Denominator used for subtracting fractions?

Yes.


How do you subtract mixed fractions when they have the same 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.


When adding or subtracting two fractions what is a necessary requirement?

A common denominator.


What two operations reequire a common denominator?

Adding and subtracting fractions.


How do you minnous fractions?

To subtract fractions with like denominators, subtract the numerators , and write the difference over the denominator. Example : Find 45โˆ’25 . Since the denominators are the same, subtract the numerators.


How are lcm's used in adding or subtracting fractions?

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


What are the step in subtracting disimilar fraction?

Same as for adding: If the denominators are not equal, you must first find a common denominator, then convert both fractions to that common denominator.