Simplify dfrac11x+dfrac12x2\\dfrac{11}{x} + \\dfrac{12}{x^2}dfrac11x+dfrac12x2
dfrac11x+12x2\\dfrac{11x + 12}{x^2}dfrac11x+12x2
dfrac11+12x+x2\\dfrac{11 + 12}{x + x^2}dfrac11+12x+x2
dfrac11xx2\\dfrac{11x}{x^2}dfrac11xx2
dfrac23x2\\dfrac{23}{x^2}dfrac23x2