Question

Answer 1

\(f=\dfrac{9}{7}-\left(\dfrac{3.2-1.7}{14}\right)=\dfrac{9}{7}-\dfrac{6-7}{14}=\dfrac{9}{7}-\left(-\dfrac{1}{14}\right)=\dfrac{9.2+1}{14}=\dfrac{19}{14}\)

Answer 2

\(\dfrac{9}{7}-\left(\dfrac{3}{7}-\dfrac{1}{2}\right)=\dfrac{9}{7}-\left(\dfrac{6}{14}-\dfrac{7}{14}\right)=\dfrac{9}{7}-\dfrac{-1}{14}=\dfrac{18}{14}-\dfrac{-1}{14}=\dfrac{19}{14}\)