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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.

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Adding fractions is achieved by adding the numerators as long as the denominators are the same. When the denominators are the same the fractions are "like fractions".

With different denominators they are "unlike fractions"; to be able to add them they need to be converted in to equivalent fractions with the same denominators. They are then "like fractions" and can be added.

Q: How is adding like fractions and adding unlike fractions the same?

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Like fractions are the fractions which have the same denominator and unlike fractions are the fractions which do not have the same denominator.

Like fractions have the same denominator, unlike fractions don't.

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.

When adding two or more unlike fractions, yes.

Like fractions have the same denominators (bottom part of fraction), unlike fractions do not.

no, to add and subtract like and unlike fractions the denominator has to be the same,

fractions having same denominators are like fractions & others are unlike fractions

you must make the fractions equivalent and with the same denomenator

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.

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

They have to have the same denominator.

When adding or subtracting fractions their denominators must be the same

You must have 2 fractions or more to have unlike fractions. They are fractions with different denominators such as 7/8 and 1/2. Like fractions would have the same denominator like 7/8 and 4/8.

The first step is to make the denominators the same.

When adding unlike fractions, it is necessary to find a common denominator. The process of doing that is the same as finding an LCM.

Ensure that the denominators are the same when adding or subtracting 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.

When adding and subtracting unlike fractions, find the LCM of the denominators and convert them to it. In this case, it's called the least common denominator, but it's the same process.

"Unlike" fractions.

When those two numbers are the denominators of unlike fractions, finding the LCM (in this case, the LCD or least common denominator) and converting the unlike fractions to equivalent fractions with the same denominator will allow you to add and subtract them.

Mixed numbers can be converted to improper fractions. Then, it is exactly the same as adding proper ones.

It depends what you are doing with the fractions. If you are multiplying or dividing fraction, the denominators do not need to be the same and the calculation can be carried out immediately. If you are adding or subtracting fractions, the denominators must be the same; if you have different denominators, the fractions must first be changed into equivalent fractions with the same denominator. When the denominators are the same (or have been made the same as equivalent fractions from being different) the calculation can be carried out.

Yes, but the numerator is different,same as adding fractions

To subtract fractions with like denominators, subtract the numerators , and write the difference over the denominator. Example : Find 45−25 . Since the denominators are the same, subtract the numerators.

I'm really sorry I've done this before but i just totally am thinking the same exact thing!