Question

\(\dfrac{-1}{3}+\dfrac{2}{5}:\dfrac{-4}{15}+\left(\dfrac{-5}{4}\right).\dfrac{4}{3}:\left(\dfrac{-7}{2}\right)\)

Answer 1

\(\dfrac{-1}{3}+\dfrac{2}{5}:\dfrac{-4}{15}+\dfrac{-5}{4}\cdot\dfrac{4}{3}:\dfrac{-7}{2}\)

\(=\dfrac{-1}{3}+\dfrac{-3}{2}+\dfrac{10}{21}\)

\(=\dfrac{-19}{14}\)

Answer 2

=\(\dfrac{-1}{3}+\dfrac{2}{5}\cdot\dfrac{-15}{4}+\dfrac{-5}{3}\cdot\dfrac{-2}{7}\)

=\(\dfrac{-1}{3}+\dfrac{-3}{2}+\dfrac{10}{21}\)

=\(\dfrac{-14-63+20}{42}=\dfrac{-19}{14}\)