SOLUTION: Simplifying Complex Fractions. I know the LCD is S, but I am not sure about how to determine the LCD with exponents. Example problem I am working on right now. 2/s - 2/s^2

Algebra.Com
Question 260080: Simplifying Complex Fractions. I know the LCD is S, but I am not sure about how to determine the LCD with exponents. Example problem I am working on right now.
2/s - 2/s^2
___________
4/s^3 + 4/s^2

Found 2 solutions by richwmiller, edjones:
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
Are there fractions in both numerator and denominator?

Let's deal with them first
multiply by s^3/s^3
2s^2-2s/4+4s
2s(s-1)/4*(1+s)


Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
Complicated numbers are not complex numbers. Complex numbers have to do with the square root of negative numbers only.
2/s - 2/s^2=(2s^2-2s)/s^3=2(s-1)/s^2
4/s^3 + 4/s^2=(4s^2+4s^3)/s^5=4(1+s)/s^3

=s(s-1)/2(1+s)
.
Ed

RELATED QUESTIONS

11/12-x/4=x/3+5/6 I know I have to find the LCD but I am not sure which numbers I... (answered by amarjeeth123,MathTherapy)
I am not sure how to do this. I must solve for X The question is: 2/3x=16(instruction:... (answered by xcentaur)
This problem is from University of Phoenix MathZone. Solve: (the following are... (answered by jim_thompson5910)
I am not sure how to find out the LCD. Can you please help? Thanks!! 3a^2/a^2+a+1... (answered by stanbon)
4 / x -y , 5 / 6 - a A) Find the LCD for the rational expression. B) Convert to... (answered by richwmiller)
I am trying to find the solution for s in the following equation: D= c-s/n I know I (answered by ankor@dixie-net.com)
I have a few I am totally stuck on. #1)2/x+3 - 2x+3/x-1 = 6x-5/x^2+2x-3 Okay... (answered by mananth)
Find the LCD of the follwing fractions: (1.) 3 3 1 - , - , - 4 8 5... (answered by Alan3354)
3/8m and 7/9a, but I'm not sure what the LCD would be, I know the LCM but I'm not sure... (answered by ikleyn)