Question

Giúp toy với ;-; 

Answer 1

g: \(=\dfrac{-1}{4}\cdot\left(13+\dfrac{9}{11}\right)+\dfrac{-1}{4}\left(6+\dfrac{2}{11}\right)\)

\(=\dfrac{-1}{4}\left(13+\dfrac{9}{11}+6+\dfrac{2}{11}\right)\)

\(=\dfrac{-1}{4}\cdot20=-5\)

b: \(=5+\dfrac{27}{5}+\dfrac{1}{2}-\dfrac{5}{27}+\dfrac{16}{23}+\dfrac{27}{23}\)

\(=5+\dfrac{59}{10}-\dfrac{5}{27}+\dfrac{43}{23}\)

\(\simeq12.584\)

c: \(=\dfrac{3}{8}\left(27+\dfrac{1}{5}-51-\dfrac{1}{5}\right)+19\)

\(=-24\cdot\dfrac{3}{8}+19=-9+19=10\)