В. 14) \(\frac{12a+5b}{3b}-\frac{2a-b}{3b}=\)

\(\frac{12a+5b}{3b}-\frac{2a-b}{3b}=\frac{12a+5b-(2a-b)}{3b}=\frac{10a+6b}{3b}\).

Ответ: \(\frac{10a+6b}{3b}\).