Add: 13x+13x\frac{1}{3x} + \frac{1}{3x}3x1+3x1 for x≠0x \neq 0x=0.
23\frac{2}{3}32
26x\frac{2}{6x}6x2
23x\frac{2}{3x}3x2
13x\frac{1}{3x}3x1