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Q: What is the definition of adding and subtracting fractions with unlike denominators?

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When adding or subtracting fractions their denominators must be the same

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

Not always but they need to have the same denominators when adding or subtracting them.

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

You cannot add or subtract fractions with different denominators. If the denominators are different then you need to work with equivalent fractions.

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest terms

Because when adding or subtracting fractions the denominators must have the same values

When adding or subtracting fractions with different denominators their lowest common denominator must be found first by using the LCM of their denominators

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

Making sure the denominators are the same.

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest termsWhen adding or subtracting fractions with different denominators their lowest common multiple is needed and when reducing fractions to their lowest terms their greatest common factor is needed.

When adding or subtracting fractions first make sure that the denominators are the same if they aren't then find the lowest common denominator and alter the fractions accordingly

It makes it easier. So both of the fractions are proportional to each other.

common denominators.

The denominators must be the same, the numerators can be different.

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.

Yes. When multiplying and dividing fractions your denominators do not have to be the same. The denominators only haveto be the same if you are subtracting or adding them.

To add and subtract fractions, you need common denominators. To find the common denominator, take the LCM of the denominators you wish to add or subtract.

It's the same thing as adding or subtracting normal fractions - just make sure both fractions have the same denominators (by either multiplying the denominators or simplifying the fraction - whichever the question needs).

To add and subtract fractions, you need common denominators. To find the common denominator, find the LCM of the denominators you wish to add or subtract.

When adding or subtracting fractions with different denominators the LCD is found with the LCM.

For adding and subtracting fractions with different denominators and reducing them to their lowest terms.

When adding or subtracting fractions with different denominators

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest terms.

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