[tex]A= \frac{x}{3}+x - \frac{1}{5}= \frac{5x}{15}+ \frac{15x}{15}- \frac{3}{15}= \frac{20x-3}{15} [/tex]
[tex]B=2+x- \frac{1}{3}-6- \frac{x}{6}= \frac{12}{6}+ \frac{6x}{6}- \frac{2}{6}- \frac{36}{6}- \frac{x}{6}= \frac{5x-26}{6} [/tex]
[tex]C=x+ \frac{1}{5}+ \frac{4}{x} = \frac{5x^{2}}{5x}+ \frac{x}{5x}+ \frac{20}{5x}= \frac{5x^{2}+x+20}{5x} [/tex]
[tex]D=4-2 \frac{x}{x}-1+5 + \frac{2x}{2x}+3=4-2-1+5+1+3=10 [/tex]
