Math For College Readiness

posted by .

Simplify the Complex Fractions
1. 8a / 3b^2 / 6ab /5
2. 42x^2 + 14x / x - 7 / 2 + 6x / 21 - 3x
3. 9 + 3 / x / x / 4 + 1 /12
4. (x^-1 + x^-2)divided by (9x^-2)

Ans. #1: 20 / 9
Ans. #2: 42x^2 + 6x + 4 / -2x + 14
Ans. #3: 144 / x / 3x + 1

I don't know how to do #4

  • Math For College Readiness -

    I have trouble interpreting you run-on compound fractions. How about some parentheses so we know what's what?

    (x^-1 + x^-2)/(9-x^2)
    (1/x + 1/x^2)/(9-x^2)
    (x+1)/(x^2 (9-x^2))
    This doesn't simplify much.

  • Math For College Readiness -

    1. (8a / 3b^2) / (6ab / 5)
    2. (42x^2 + 14x) / (x - 7) / (2 + 6x / 21 - 3x)
    3. (9 + 3 / x) / (x / 4 + 1 /12)

  • Math For College Readiness -

    1. (8a)/(3b^2) * (5)/(6ab) = (40a)/(18ab^3) = 20/(9b^3)

    2. (14x)(3x+1)/(x-7) * 3(7-x) / (2(3x+1))
    = 42x(3x+1)(7-x) / 2(x-7)(3x+1)
    = -21x

    3. (9x+3)/x / (3x+1)/12
    = 3(3x+1)/x * 12/(3x+1)
    = 36/x

  • Math For College Readiness -

    Thank you very much, Steve :)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    The rectangle given has a perimeter of 14 units. Find the value(s) of x by factoring a quadriatic equation. one side= 12/(x+1) other side= 6/(4-x) Remember that the perimeter of a rectangle is: P = 2L + 2W Note: P = perimeter, L = …
  2. Math - Derivatives

    Differentiate the given function. Simplify the answer. f(x) = 28x*ln√x + 42 f'(x) = 28*ln(x)^(1/2) + (1/(x^(1/2))*(1/2(x)^(-1/2)28x) f'(x) = 28*ln(x)^(1/2) + (14x*x^(-1/2))/x^(1/2) f'(x) = 28*ln(x)^(1/2) + (14x^(-1/2))/x^(1/2) …
  3. math

    which equation is equivalent to 5x-2(7x+1)=14x?
  4. algebra

    solve the following equation by clearing fractions show all work want to know if this right -7/3-5/2x=8+2x 6(-2/3)-(5/2x)(6)=6(8)+2x(6) 14x-15=48+12x 14x-12x-15=48+14x-14x 2x-15=48 2x-15+15=48+14x-14x 2x-15=48 2x-15+15=48+15 2x=-33 …
  5. Math For College Readiness

    Simplify: y - 3 / y - 2 - y + 1 / 2y - 5 + -4y + 7 / 2y^2 - 9y + 10
  6. Math For College Readiness

    Simplify: (3w - 1) / (2w^2 + w - 3) - (2 - w) / (w - 1) - (w) / (1 - w)
  7. Math

    If one factor of 56x^4y^3-42x^2y^6 is 14x^2y3,what is the other factor
  8. Math

    Solving ya Systems of Equations by elimination -14x+15y=3 21x-20y=-10 The LCM is 42 so I am able to get (-14x +15y=15)3 = -42x+45=45 (21x-20y=-10)2 = 42x-40y=-20 y =7 but when I plug it in to try and figure out x I do not get a whole …
  9. math college readiness

    Find the midpoint of the segment below and enter its coordinates as an ordered pair. If necessary, express coordinates as fractions, using the slash mark ( / ) for the fraction bar.
  10. Algebra

    Simplify. Complex Fractions. b-2b/b+3/1/b+3+1/b-3= LCM: (b+3)(b-3)

More Similar Questions