Ushtrimi 11

Thjeshtoni shprehjet me thyesa algjebrike.

a) $\frac{1}{a} + \frac{2}{a}$

b) $\frac{2b}{5} - \frac{3b}{8}$

c) $\frac{5}{6c} + \frac{2}{3c}$

d) $\frac{3}{4d} - \frac{1}{2d^2}$

e) $\frac{3}{d} + \frac{5}{f}$

f) $\frac{3a}{b} \times \frac{5b}{3a^2}$

g) $\frac{3a^2}{b} : \frac{9a}{b^2}$

h) $\frac{a}{a+1} - \frac{a}{a+2}$