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how to find the LCD for 11x/yz^2, 8x/y^2z?

I know the answer is yz^2 but how do you get that.
can you plzz plzz explain..... this it is really important..... thnx ...... a lot..

  • math -

    Look at the denominators, and find the individual factors:

    11x/(yz^2): y*z^2
    8x/(y^2z): y^2*z

    The greatest power of y is y^2. The greatest power of z is z^2.

    Now multiply the greatest powers to find the LCD.

    The LCD should actually be y^2*z^2.

  • math -

    thank you, I really appreciate all you're help and I was thinking the same but the book was confusing me, guess the book is wrong as usuall thanks a lot....

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