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No. Only if you're adding or subtracting and then only if the denominators are different.

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โˆ™ 2016-04-08 14:12:28
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Q: Do you always have to find common denominator when working with fractions?
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When adding fractions what you always must do is find the?

Common denominator


What is always needed when adding and subtracting fractions?

a common denominator


How do you get the common denominator for dividing fractions?

You don't need a common denominator to divide fractions.


Is the least common denominator of two fraction is always greater than the denominator of the fractions?

Not always. If one denominator is a multiple of the other, the LCD will be the larger one.


Do you have to have a common denominator when your multiplying?

no u dnt need to have a common denominator.. Just multiply both the denominator and numerator of the fractions u are working on and u will arrive at the answers


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.


How to add fractions having similar numerators but different denominators?

The first step, to add, subtract, or compare fractions, is always to convert the fractions to equivalent fractions, that all have the same denominator. You can use one of several techniques to get the LEAST common denominator, or simply multiply the two denominators to get a common denominator (which in this case may, or may not, be the smallest common denominator).


What is the least common denominator of two fractions?

The least common denominator is the least common multiple of the denominators of the fractions.


Do you need a common denominator for dividing fractions?

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


How do you subtract fractions when denominator is different?

By finding the lowest common denominator of the fractions.


Why do you have to find a common denominator?

Addition or subtraction of fractions require "like" fractions: that is, fractions with the same denominator.


Is 3 over 4 or 5 over 8 bigger?

To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.To compare fractions, convert them to a common denominator - in this case, a denominator of 8 will work.


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.


What fraction is bigger seven eighths or nine tenths?

To compare two fractions, convert them to a common denominator.To compare two fractions, convert them to a common denominator.To compare two fractions, convert them to a common denominator.To compare two fractions, convert them to a common denominator.


Is it always necessary to find the least common denominator to compare the sizes of fractions?

When comparing fractions you must find a common denominator; by finding the least common denominator it will keep the numbers (numerators and denominator) smaller .


Is the product of two denominators always a common denominator?

Only if you have just two fractions.


Do you need a common denominator for all fractions before doing the order of operations?

You DO need a common denominator to add, subtract, or compare fractions. You DO NOT need a common denominator to multiply or divide fractions.


What do you call fractions with the same denominator?

common denominator


Why do you need a common denominator?

Common Denominator means that the denominators in two (or more) fractions are common, or the same. The common denominator is important because before you can add or subtract fractions, the fractions need to have a common denominator.Sometimes fractions have different denominators, like 2/3 and 3/4. If you want to add or subtract them, they need to have the same denominator. In order to do that, you find a common denominator which is the same thing as a common multiple, only with denominators.


How do you add improper fractions if the denominator can't multiply into the other denominator?

You Ned to find a larger common denominator or multiply the denominators to gain a common denominator.


What are the fractions that have the same denominators called?

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


Do you have to have a common denominator when you are adding fractions?

Having a common denominator makes it easier to add or subtract fractions. You can also convert fractions to decimals and then do the addition or subtraction but that is really the same thing as having a common denominator of 10. 100. 1000. etc. Without a common denominator, you would have to mentally make adjustments for the values of fractions. Of course, that is really establishing a common denominator in your head.


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.


A denominator that is the same in two or more fractions?

A "common denominator"


What common denominator of two fractions is the least common multiple of the two denominators?

The least common denominator of two fractions is the least common multiple of the two denominators.

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