How do you divide rational expressions?

Question

how do you divide ration expressions ? I know that im supposed to

1) change to multiplication

2)make all exponets positive

3) factor and cancel

4) combine

i just dont know how to apply this method also the dots are not decimals that all stand for multiplication.

(x.x)%(-Y) divided by (2.y.y)%(-x)

 

or  this problem

(3.2.x.x.y)%(3.1.x.-y.y% y.y)

 

Answer 1

Multiply the top and bottom by the common denominator of all the fractions.
Doing this will get rid of the fractions within a fraction.

I assume the % sign is supposed to mean ÷

x² 
----
-y
----------
2y²
----
-x

 

x² 
---- (-xy)
-y
---------- {multiplied top and bottom by common denominator}
2y²
---- (-xy)
-x

x³
----- {cancelled and multiplied what was left}
2y³
www.algebrahouse.com
 

Answer 2

dota