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I have no idea how you would do this problem: Express this expression as a rational number in lowest terms.


  • Math -

    (1000*998)/(1000*1000)=998/1000 and u can simplify this number

  • Math -

    You have to realize that factorials can be written in several ways

    12! = 12*11*10*9! or
    12! = 12*10*10! I am saying you can stop anywhere

    = (1000*999*998!-999*998!-998!)/(1000*999*998!+999*998!+998!)
    = 998000/1000000

  • Math -

    Both numerator and denominator have a common factor of 998!. Cancel that out and you have
    [1000*999 -999-1]/[1000*999 + 999+1]

  • Math(correction) -


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