Tính bằng cách hợp lí:
a,\(\left(\dfrac{1}{3}+\dfrac{12}{67}+\dfrac{13}{41}\right)-\left(\dfrac{79}{67}-\dfrac{28}{41}\right)\)
b,\(1\dfrac{5}{13}-0,\left(3\right)-\left(1\dfrac{4}{9}+\dfrac{18}{13}-\dfrac{1}{3}\right)\)
c, \(139\dfrac{5}{7}:\dfrac{2}{3}-138\dfrac{2}{7}:\sqrt{\dfrac{4}{9}}\)
d, \(\left(-\dfrac{5}{11}:\dfrac{13}{8}-\dfrac{5}{11}:\dfrac{13}{5}\right)+\dfrac{-1}{33}\)