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A common denominator is required to add or subtract fractions and not otherwise.

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โˆ™ 2012-06-16 16:21:00
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Q: When is a common denominator needed and when is one not needed?
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Related questions

What is the least common denominator for 49 over 64?

At least one other fraction is needed to determine a common denominator.


Why do you have to have a common denominator?

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


What is the common denominator for 5 over 3?

At least two fractions are needed to determine a common denominator.


What is a common denominator for 5 eighths?

At least two fractions are needed in order to determine a common denominator.


Do you need a common denominator for dividing fractions?

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


What is the common denominator of 1198?

Two or more numbers are needed to find their lowest common denominator which is the same as their lowest common multiple.


What is the common denominator of 2 over 8 and 3 over 6?

The lowest common denominator needed is 24


What is the least common denominator of 180 over 168?

At least two fractions are needed to determine a least common denominator.


What is the common denominator of 8 and 10?

A common denominator, though not the least, is 80.


What is the common denominator of one thousand and eighty four?

The common denominator refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The common denominator for a number is itself.


What is a common denominator of fractions 34 and 58?

If you mean fractions of 3/4 and 5/8 then the lowest common denominator needed is 8


What is always needed when adding and subtracting fractions?

a common denominator


What is the common denominator for 12 and 15?

A common denominator, though not the least one, is 180.


A common denominator for the fractions one half and three quarters?

The common denominator is 4


What is the common denominator of five at 11?

A common denominator, though not the least one, is 110.


What is Greatest common denominator of 292?

To have a common denominator, you usually have two or more numbers. By listing only one number then it is its own common denominator.


What is the common denominator of 6?

The common denominator refers to a denominator that is COMMON to two or more numbers. You have only one number in the question! 6 = 6/1 so the denominator is 1.


What is a common denominator for 49?

The common denominator refers to a denominator that is COMMON to two or more numbers. You have only one number in the question! 49 = 49/1 so the denominator is 1.


Where is a denominator used?

Many places, but a common one is in adding fractions where we find a common denominator.


What is the lowest common denominator 67100?

The lowest common denominator refers to a denominator that is COMMON to two or more numbers. You have only one number in the question! 67100 = 67100/1 so the denominator is 1.


What is the common denominator of one third and one sixth?

three, because for one third three was the denominator , and for one sixth the denominator was devisable by three.


What is a common denominator for 14 and 49?

A common denominator, though not the least one, is 14*49 = 686.


What is the common denominator of 12 and 20?

A common denominator, though not the least one, is 12*20 = 240.


What is a common denominator for 16 and 24?

A common denominator, though not the least one, is 16*24 = 384.


What is a common denominator for 3 4 2 and 5?

A common denominator, though not the least one, is 120.