Tính
a) 2\(\dfrac{1}{2}\) - 3,4(12) - \(\dfrac{4}{3}\) +\(\dfrac{1}{3}\) . (\(\dfrac{1}{2}\) + 0,5 - 3\(\dfrac{1}{2}\) )
d) \([\) 0,(5) .0,(2) \(]\) : ( 3\(\dfrac{1}{3}\) : \(\dfrac{23}{25}\) ) - ( \(\dfrac{2}{5}\) . \(\dfrac{11}{3}\) ) : \(\dfrac{4}{3}\)
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