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In what type of problem exactly?

For addition and subtraction of fractions

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Q: Why do common denominators lead to the correct answer?
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Related questions

How are common multiples and common denominators the same and different?

Common multiples and common denominators can be found using the same process. They differ in their function. Common denominators are common multiples that are functioning as denominators.


Why would the least common multiples help us with fraction addition?

Least common multiples and lowest common denominators are essentially the same thing. Once the denominators are the same, it's easier to get the correct answer when adding and subtracting fractions.


How are common denominator and common multiple alike?

Common denominators are common multiples of two or more denominators.


What is unrelated denominators?

Denominators which have no common factors


Is the least common multiple of the denominators?

The least common denominator is the least common multiple of the denominators.


How do you write fractions with common denominators?

multiply the denominators


What is the common multiple of the denominators?

The least common multiple of the denominators is knows as the LCD or least common denominator.


What way is subracting fractions with unlike denominators like adding fractions with unlike denominators?

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.


Fractions with unlike denominators and no common factors to have common denominators?

Multiply them by each other.


What do naracoorte yarrangobilly jenolen wombean have in common?

Denominators. This is where the term, common denominators comes from.


How are common denominator any common multiple alike?

Common denominators are created by finding the common multiples of unlike denominators.


What is the lowest common multiple of the denominators?

You have to state the denominators to expect an answer