Question

Answer 1

\(A=\dfrac{-7}{25}\cdot\dfrac{39}{-14}\cdot\dfrac{50}{78}=\dfrac{50}{25}\cdot\dfrac{-7}{-14}\cdot\dfrac{39}{78}=\dfrac{1}{2}\)

\(B=\dfrac{-3}{11}\cdot\dfrac{-22}{66}\cdot\dfrac{121}{15}=\dfrac{-3}{66}\cdot\dfrac{-22}{11}\cdot\dfrac{121}{15}=\dfrac{11}{15}\)