Question

i will give medal just for helping

Answer 1

How does adding and subtracting rational expressions relate to adding and subtracting simple fractions?

Answer 2

i dont know

Answer 3

thanks for looking at it

Answer 4

If the speed of an airplane is 350mi/h with a tail wind of 40mi/h, what is the speed of the plane in still air? (with no tail wind)

Answer 5

from here:
http://www.purplemath.com/modules/rtnladd.htm

Addition and subtraction are the hardest things you'll be doing with rational expressions because, just like with regular fractions, you'll have to convert to common denominators.