Помогите 848 пожалуйста!

[latex] \frac{ x^{2} +xy}{ x^{2} } = \frac{ x(x+y)}{ x*x } = \frac{x+y}{x} [/latex] [latex] \frac{4a+12ab}{12a} = \frac{4a(1+3b)}{4a*3}= \frac{1+3b}{3} [/latex] [latex] \frac{5m^{2}-m^{2} }{8m}= \frac{m^{2}(5-1 )}{m*8} = \frac{4m}{8} = \frac{m}{2} [/latex] [latex] \frac{3x+6y}{5x+10y}= \frac{3(x+2y)}{5(x+2y)}= \frac{3}{5} [/latex]