Simplify dfrac12x+dfrac13x2\\dfrac{12}{x} + \\dfrac{13}{x^2}dfrac12x+dfrac13x2
dfrac12xx2\\dfrac{12x}{x^2}dfrac12xx2
dfrac25x2\\dfrac{25}{x^2}dfrac25x2
dfrac12x+13x2\\dfrac{12x + 13}{x^2}dfrac12x+13x2
dfrac12+13x+x2\\dfrac{12 + 13}{x + x^2}dfrac12+13x+x2