Question

Answer 1

a: \(=\dfrac{4}{7}+\dfrac{2}{19}\cdot\dfrac{7}{3}=\dfrac{4}{7}+\dfrac{14}{57}=\dfrac{326}{399}\)

b: \(=\dfrac{6}{11}\cdot\dfrac{2}{5}-\dfrac{5}{11}=\dfrac{12}{55}-\dfrac{5}{11}=\dfrac{12-25}{55}=\dfrac{-13}{55}\)

c: \(=\dfrac{17}{15}-\dfrac{3}{2}=\dfrac{34-45}{30}=\dfrac{-11}{30}\)