Please perform each operation and reduce answer. Thanks!
a. (13x^2)/(15) + (3x^2)/(10)
b. (3x+1)/(3x) - (x+3)/(2x)
c. (-6x^3y^2)/(5x^6y) ((times)) (10xy)/3
d. (x-3)/(x+4) ((divided by)) (x+1)/(2x+8)
p.s. you don't have to work all of these, just as much as you want to do. : )

Question

Please perform each operation and reduce answer. Thanks!
a.   (13x^2)/(15) + (3x^2)/(10)
b.   (3x+1)/(3x) - (x+3)/(2x)
c.   (-6x^3y^2)/(5x^6y) ((times)) (10xy)/3
d.   (x-3)/(x+4) ((divided by)) (x+1)/(2x+8)
p.s. you don't have to work all of these, just as much as you want to do. : )

anonymous · Answer

a: You need common denominators. I'd try 30. 
$${13x^2 \over 15 }*{2 \over 2} + {13x^2 \over 10} * {3 \over 3} ={{26x^2 + 39x^2} \over 30}$$
b. Ditto with 6x
c. and d are different beasts.