Subtract: 3x−12x−x+12x\frac{3x-1}{2x} - \frac{x+1}{2x}2x3x−1−2xx+1
2x2x\frac{2x}{2x}2x2x
2x−22x\frac{2x-2}{2x}2x2x−2
111
1x\frac{1}{x}x1