a)
\(=\dfrac{22}{3}.\dfrac{23}{2}-\dfrac{22}{3}.\dfrac{20}{11}-\dfrac{3}{2}\)
\(=\dfrac{22}{3}\left(\dfrac{23}{2}-\dfrac{20}{11}\right)-\dfrac{3}{2}\)
\(=\dfrac{22}{3}.\dfrac{213}{22}-\dfrac{3}{2}=71-\dfrac{3}{2}=69,5\)
b)\(=\dfrac{10}{17}-\dfrac{5}{13}+\dfrac{7}{17}-\dfrac{8}{13}+\dfrac{11}{25}=1-1+\dfrac{11}{25}=\dfrac{11}{25}\)
b)
\(=0,25-\dfrac{9}{4}:\dfrac{1}{4}+\dfrac{3}{2}.1=0,25-9+\dfrac{3}{2}=-7,25\)
c)
\(=\dfrac{25}{9}+\dfrac{9}{4}-\dfrac{5}{6}=\dfrac{151}{36}\)
c: Ta có: \(\left(\dfrac{5}{3}\right)^2+\left(\dfrac{3}{2}\right)^{27}:\left(\dfrac{3}{2}\right)^{25}-\left|-\dfrac{5}{6}\right|\)
\(=\dfrac{25}{9}+\dfrac{9}{4}-\dfrac{5}{6}\)
\(=\dfrac{100}{36}+\dfrac{81}{36}-\dfrac{30}{36}\)
\(=\dfrac{151}{36}\)
