2/(3x^2)+ 10/(3x^2)
4/(x^2)
(2x+5)/7 - x/7
x/7
(9x^4)/(6x^2y)*(12x)/(36y^2)
x^3/(2y^3)
(6r)/(r+8) divide (8)/(8r+64)
6r
8/x+(x+9)/x
(17+x)/x
(2x+3)/(x+5)-(x-3)/(x+5)
(x+6)/(x+5)
(9x+81)/(3y)*(6y^3)/(x+9)
(18y^3)/1
(m-4)/(3m^2+24m) divide (m-4)/(m-6)
(m-6)/[3m(m+8)]
x/(x^2-4)+1/(x-2)
(2x+2)/[(x-2)(x+2)
(x-2)/(x-2)-(x^2+4x-4)/(x^2+4x-12
-8/[(x+6)(x-2)
(7n^2(n+4))/[(n-3)(n+4)]*(n-3)/[(n+8)(n+6)]
(7n^2)/[(n+8)(n+6)]
(n^2-9n-10)/(n+1) divide (n+3)/(n+10)
[(n+10)(n-10)]/(n+3)
(x-4)/(x^2+5x+6)+ (x+1)/(x^2-4)
(2x^2-2x+11)/((x+3)(x+2)(x-2)
7/(3x^2y)-6/(5xy^4)
(35y^3-18x)/(15x^2y^4)
(21x^2-21x)/(18x^2-18x)*(6x)/(6x^2)
(7)/(6x)
(1)/(7b+35) divide (3b)/(b^2+11b+30)
(b+6)/(21b)
(x+1)/(x^2+6x+9)+(x-4)/(x^2-9)
(2x^2-2x+11)/((x+3)(x+2)(x-2)
(x-4)/(x^2+5x+6)-(x-1)/(x^2-4)
(-8x+11)/[(x-2)(x+2)(x+3)
(m+1)/(3m-15)*(8m-80)/(m^2-9m-10)
(8)/[3(m-5)]
(x-10)/(x-7) divide (x^2-x-56)/(x^2-49)
(x-10)/(x-8)