Which expression is the lcd of these fractions 4/x^2y 20/xy

Question

Which expression is the lcd of these fractions 4/x^2y 20/xy

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    0
    2021-11-23T17:54:25+00:00

    The answer is x^2y. i just took this quiz and this is 100% the correct answer!

    0
    2021-11-23T17:54:38+00:00

    LCD of      4       and   20
                 (x^2)y           xy

    Without any mathematical operations involved, ask yourself how many common variables are in the denominators.   x^2 is the same as (x)(x)

    so we have           4              and             20      
                            (x)(x)(y)                          (x)(y)

    So what we have in common is one (x) and one (y).

    The LCD is xy
        

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