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Do you have to have a common denominator when you are adding fractions?
Wiki User
∙ 8y ago
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.
Wiki User
∙ 8y ago
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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?
Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.
What is the rule for adding fractions?
They have to have 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.
Do you need common denominator when adding fractions?
Yes.
When adding or subtracting fractions you must get a?
A Common Denominator
Where is a denominator used?
Many places, but a common one is in adding fractions where we find a common denominator.
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.
Adding unlike fractions?
If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.
What do you do if you are adding three fractions?
Find a common denominator and proceed.
When adding fractions what you always must do is find the?
Common denominator
