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You have to find the least common denominator of 5 and 8. That's 40.

1/5=8/40

5/8=25/40

Add numerators.

Answer=33/40

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13y ago

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

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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.


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 is useful in finding the least common denominator when adding unlike denominators?

Least common denominator.....


When adding fractions with unlike denominators it is most helpful if the fractions are renamed using the?

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What is the word for fractions with different denominators?

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When adding unlike fractions, find the LCM of the denominators and convert them to it.


What is adding fractions with unlike denominators?

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