p: \(8\dfrac{1}{5}\cdot50\%\cdot\dfrac{5}{41}\cdot\left(-16\right)\)
\(=\dfrac{41}{5}\cdot\dfrac{5}{41}\cdot\dfrac{1}{2}\cdot\left(-16\right)\)
\(=\dfrac{1}{2}\cdot\left(-16\right)=-8\)
p1: \(\dfrac{4}{9}:\left(-\dfrac{1}{7}\right)+\left(6\dfrac{5}{9}\right)\cdot\left(-7\right)\)
\(=\dfrac{4}{9}\left(-7\right)+\left(6+\dfrac{5}{9}\right)\cdot\left(-7\right)\)
\(=\left(-7\right)\left(\dfrac{4}{9}+6+\dfrac{5}{9}\right)\)
\(=-7\cdot7=-49\)
q: \(-4\dfrac{1}{3}\cdot1,5\cdot\dfrac{3}{13}\cdot\left(-20\right)\)
\(=-\dfrac{13}{3}\cdot\dfrac{3}{13}\cdot1,5\cdot\left(-20\right)\)
\(=-1\cdot\left(-20\right)\cdot1,5=20\cdot1,5=30\)
q1: \(-\dfrac{1}{4}\cdot\left(13\dfrac{9}{11}\right)-0,25\cdot\left(6\dfrac{2}{11}\right)\)
\(=-\dfrac{1}{4}\left(13+\dfrac{9}{11}+6+\dfrac{2}{11}\right)\)
\(=-\dfrac{1}{4}\cdot20=-5\)
r: \(\dfrac{2}{-3}+1\dfrac{4}{5}-50\%\cdot\left(-\dfrac{1}{2}\right)^2\)
\(=-\dfrac{2}{3}+\dfrac{9}{5}-\dfrac{1}{2}\cdot\dfrac{1}{4}\)
\(=\dfrac{-10+27}{15}-\dfrac{1}{8}\)
\(=\dfrac{17}{15}-\dfrac{1}{8}=\dfrac{17\cdot8-15}{120}=\dfrac{121}{120}\)
s: \(\dfrac{-4}{15}-\dfrac{11}{15}\cdot\dfrac{13}{29}-\dfrac{11}{15}\cdot\dfrac{16}{29}\)
\(=-\dfrac{4}{15}-\dfrac{11}{15}\left(\dfrac{13}{29}+\dfrac{16}{29}\right)\)
\(=-\dfrac{4}{15}-\dfrac{11}{15}=-\dfrac{15}{15}=-1\)
