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math

posted by on .

First, why is the least common denominator of 3/4 and 4/8 not the product of 4 ad 8?

Also, why is the least common denominator of 5/9 and 7/12 not the product of 9 and 12.


Please explain both answers.

  • math - ,

    They are not the least or the smallest common denominators.

  • math - ,

    Sorry but can you please explain that more.

  • math - ,

    The least common denominator of 3/4 and 4/8 is 8. It's the smallest number divisible by both 4 and 8.

    The least common denominator of 5/9 and 7/12 is 36. It's the smallest number divisible by both 9 and 12.

  • math - ,

    Ms. Sue i am very sorry but please explain that with more details.

  • math - ,

    These sites have excellent explanations.

    http://www.mathsisfun.com/least-common-denominator.html

    http://www.youtube.com/watch?v=kZUImLklXHk

    http://www.aaamath.com/fra66jx2.htm

  • math - ,

    But what do they mean when they say the product of 4 and 8 and of 9 and 12?

  • math - ,

    Product is the answer to a multiplication problem.

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