Question

Ajutor! Cum se calculează aceste fracții? Urgent!

Answer 1

a) [tex]a) \frac{\frac{2x}{x+1}}{\frac{2x}{x+1}- \frac{2}{1} } = \frac{\frac{2x}{x+1}} {\frac{2x-2(x+1)}{x+1} }= \frac{\frac{2x}{x+1}} {\frac{-2}{x+1} }=\frac{2x}{x+1}*\frac{x+1}{-2}=-x [/tex]

$b) \frac{2\frac{x}{x-2}}{\frac{x}{x-2}- 1 } = \frac{2\frac{x}{x-2}}{\frac{x+x-2}{x-2} } = \frac{2\frac{x}{x-2}}{\frac{2x-2}{x-2} } = \frac{2\frac{x}{x-2}}{\frac{2(x-1)}{x-2} } = \frac{\frac{x}{x-2}}{\frac{x-1}{x-2} } = \frac{x}{x-2}}*{\frac{x-2}{x-1} = \frac{x}{x-1}$