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    Find the LCD for a given rational expression; reduce to the lowest terms

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    Find the LCD for the given rational expression, and convert each rational expression into an equivalent rational expression with the LCD as the denominator.

    Page 345

    # 47. x y 1
    ----, ------, ------
    9y^5 12x^3 6x^2y

    # 48 5 3b 1
    -------, -------, ----------
    12a^6b 14a ^3 2ab^3

    Page 346

    # 53.. x 5x
    --------, -----------
    X^2- 9 x^2 -6x +9

    # 54. 5x -4
    ----------, -------------
    X^2 - 1 x^2 -2x + 1

    # 57. -5 x 3
    -------, -------,---------
    6x -12 x^2 -4 2x + 4

    Perform the indicated operation. Reduce each answer to lowest terms.

    Page 353

    # 49. 3 2
    -------- -- ---------
    2a -2 1 -a

    # 53. 3 4
    ------------- + -------------
    X^2 + x - 2 x^2 + 2x -3

    #57. 5 3 4
    --------- -- --- + ----------
    3a -9 2a a^2 - 3a

    # 62. Traveling time. After leaving Moose Jaw, Hanson drove 200kilometers at x Km/hr and then decreased his speed by 20 Km/hr and drove 240 additional kilometers, make a table. Write a rational expression for his total traveling time. Evaluate the expression for x = 100

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    https://brainmass.com/math/algebra/find-the-lcd-for-a-given-rational-expression-reduce-to-the-lowest-terms-57042

    Solution Summary

    In a very careful solution, all the formulas are given to solve the problems including calculations of the answers.

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