Question

Các bạn giúp mik với

Answer 1

h: \(=\left(5+\dfrac{3}{15}-4-\dfrac{2}{15}\right)\cdot\left(-\dfrac{5}{3}\right)^2+3\cdot\left(\dfrac{9}{4}\cdot4\right)\)

\(=\left(1+\dfrac{1}{15}\right)\cdot\dfrac{25}{9}+3\cdot9\)

\(=\dfrac{16}{15}\cdot\dfrac{25}{9}+3\cdot9=\dfrac{809}{27}\)

k: \(=\left[\left(\dfrac{4}{13}-\dfrac{12}{13}\right)\cdot\dfrac{2}{5}+\dfrac{3}{20}\right]\cdot\left(-10.4\right)\)

\(=\left(\dfrac{2}{13}\cdot\dfrac{2}{5}+\dfrac{3}{20}\right)\cdot\left(-10.4\right)\)

\(=\dfrac{11}{52}\cdot\dfrac{-52}{5}=-\dfrac{11}{5}\)