SOLUTION: -2a^2/3a^2*20a/15a^3 I have to multiply this but I am not sure if I'm supposed to delete the most common denominator. So this is where I get confused. Can you please help this 40

Algebra ->  Rational-functions -> SOLUTION: -2a^2/3a^2*20a/15a^3 I have to multiply this but I am not sure if I'm supposed to delete the most common denominator. So this is where I get confused. Can you please help this 40       Log On


   

Question 207147: -2a^2/3a^2*20a/15a^3 I have to multiply this but I am not sure if I'm supposed to delete the most common denominator. So this is where I get confused. Can you please help this 40 year old that's back in school. To hurry up the process of management. LOL
Thanks
Found 2 solutions by scott8148, ankor@dixie-net.com:
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
multiply the numerators and the denominators, then cancel what you can


%28%28-2a%5E2%29%2F%283a%5E2%29%29+%2A+%28%2820a%29%2F%2815a%5E3%29%29 = %28-40a%5E3%29%2F%2845a%5E5%29 = %28-8%29%2F%289a%5E2%29

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
%28-2a%5E2%29%2F%283a%5E2%29 * %2820a%29%2F%2815a%5E3%29
In the 1st fraction cancel a^2, cancel 5a in the second fraction, results
-2%2F3 * 4%2F%283a%5E2%29 = -8%2F%289a%5E2%29