\(=\dfrac{5}{9}\left(\dfrac{2}{7}+\dfrac{7}{7}\right)-\dfrac{8}{3}\)
\(=\dfrac{5}{9}-\dfrac{8}{3}=-\dfrac{19}{9}\)
\(\dfrac{5}{9}\cdot\dfrac{2}{7}+\dfrac{5}{9}\cdot\dfrac{5}{7}-\dfrac{8}{3}=\dfrac{5}{9}\cdot\left(\dfrac{2}{7}+\dfrac{5}{7}\right)-\dfrac{8}{3}=\dfrac{5}{9}\cdot1-\dfrac{8}{3}=\dfrac{5}{9}-\dfrac{8}{3}=-\dfrac{19}{9}\)
= 5/9 . (2/7 + 5/7) - 8/3
= 5/9 . 1 - 8/3
= 5/9 - 8/3
= -19/9
= 5/9 . (2/7 + 5/7) - 8/3
= 5/9 . 1 - 8/3
= 5/9 - 8/3
= 5/9 - 24/9
= -19/9
= \(\dfrac{5}{9}.\left(\dfrac{2}{7}+\dfrac{5}{7}\right)-\dfrac{8}{3}\)
=\(\dfrac{5}{9}.1-\dfrac{8}{3}\)
=\(-\dfrac{19}{9}\)
\(==\left(\dfrac{2}{7}+\dfrac{5}{7}\right)\cdot\dfrac{5}{9}-\dfrac{8}{3}=\dfrac{5}{9}\cdot\dfrac{7}{7}-\dfrac{8}{3}=\dfrac{5}{9}-\dfrac{8}{3}=-\dfrac{19}{9}\)