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

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โˆ™ 2012-04-19 08:43:45
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Q: How do you get a common denominator for subtracting fractions?
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Related questions

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


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.


Why do you have to have a common denominator?

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


When adding or subtracting fractions you must get a?

A Common Denominator


Do you need a common denominator in subtracting fractions?

Yes.


Does division need a common denominator?

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


How is subtracting fractions like adding fractions?

You need a common denominator for both.


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.


What is always needed when adding and subtracting fractions?

a common denominator


Is Least Common Denominator used for subtracting fractions?

Yes.


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

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


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 solve a fraction problem when you don't have the same denominator?

If you are adding or subtracting unlike fractions, convert them to equivalent fractions with a common denominator.


How do subtract two fractions with different denominator?

First find the lowest common denominator and then adjust the fractions accordingly before subtracting the numerators


A common multiple of two or more denominators?

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


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.


How can knowing the LCM help you add subtract and multiply fractions?

When adding and subtracting unlike fractions, it is necessary to find the LCM of the denominators, called the least common denominator. Once you have found the LCD, you can convert the fractions to equivalent fractions with a common denominator and proceed with the adding and/or subtracting. Finding an LCM will have no effect on multiplying fractions.


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.


Adding and subtracting unlike fractions steps?

first u find a common denominator


When adding or subtracting fractions you must first make sure you find a?

common denominator


What is the meaning of LCD Fraction?

The Lowest Common Denominator is needed when adding or subtracting fractions.


How do you solve all fractions problems?

You basically have to learn separately how to do different things with fractions, including finding a common denominator; converting fractions to a different denominator; simplifying fractions; adding and subtracting fractions; multiplying fractions; dividing fractions.


What are the steps to subtracting fractions?

Same as for addition. Mainly, you have to convert the fractions to equivalent fractions that have the same denominator. After that, it is easy: just subtract the numerators and put the result on top of the common denominator.