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You can only add like to like. There is no mechanism for adding different types of fraction.

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โˆ™ 2016-05-03 18:38:47
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โˆ™ 2016-05-03 02:23:11

So that the answer will be correct.

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Q: Why must you find a common denominator before adding fractions?
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What is halfway between 1 over 4 and 1 over 2?

Just add the fractions, and divide by 2. Before adding, you have to convert to a common denominator; in this case, you can use "4" as the common denominator.Just add the fractions, and divide by 2. Before adding, you have to convert to a common denominator; in this case, you can use "4" as the common denominator.Just add the fractions, and divide by 2. Before adding, you have to convert to a common denominator; in this case, you can use "4" as the common denominator.Just add the fractions, and divide by 2. Before adding, you have to convert to a common denominator; in this case, you can use "4" as the common denominator.


Do you need a common denominator for dividing fractions?

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


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 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 is the rule for adding fractions?

They have to have a common denominator


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.


Why do you have to have a common denominator?

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


What must a mathematician do before adding two unlike fractions?

Find the lowest 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.


Do you need a common denominator when adding fractions?

yes


When adding or subtracting fractions you must get a?

A Common Denominator


Do you need common denominator when adding fractions?

Yes.


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 did you learn from adding and subtracting fractions?

I learned to always change the denominators before adding or subtracting the numerators. You must always have a common denominator before adding or subtracting.


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

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


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


What is always needed when adding and subtracting fractions?

a common denominator


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 is adding like fractions and adding unlike fractions the same?

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 is the secret to adding fractions?

When adding or subtacting fractions make sure that the denominators are of the same values if they are not then find the lowest 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.

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