Math, HELP!

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Find the LCD:

a) (12/55c^6) (4/11c^9)

b) (9/4c+12) (5c/5c+10)

c) (9x/x^2-4x+4) (5x/x^2-5x+6)

d) (7/x) (3/42-7x) (x/x^2-36)

  • Math, HELP! -

    55c^6 = 5*11*c^6
    11c^9 = 11*c^9
    LCD = 5*11*c^9

    Do the others in like wise. LCD will have the highest power of any of the prime factors or variables.

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