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Earn +20 ptsQ: How do you compare fractions without common denominators?
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How do you subtract fractions without alike denominators?
Convert unlike fractions to equivalent fractions with common denominators by finding the LCM of the denominators.
How do you write fractions with common denominators?
multiply the denominators
When adding fractions with unlike denominators it is most helpful if the fractions are renamed using the?
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 do you have to use the common denominators?
You use them when there are 2 fractions with different denominators.
Why can't unlike fractions be added without common denominators?
Because trying to add them without a common denominator would yield an incorrect answer.
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