Question

5/9. -2/13 + 5/9. -7/13 + -8/13

 

 

Answer 1

\(=\dfrac{5}{9}\cdot\left(-\dfrac{2}{13}+\dfrac{-7}{13}\right)-\dfrac{8}{13}=\dfrac{5}{9}\cdot\dfrac{-9}{13}-\dfrac{8}{13}=-\dfrac{5}{13}-\dfrac{8}{13}=-\dfrac{13}{13}=-1\)

Answer 2

\(\dfrac{5}{9}\cdot\dfrac{-2}{13}+\dfrac{5}{9}\cdot\dfrac{-7}{13}+\dfrac{-8}{13}=\dfrac{5}{9}\cdot\left(\dfrac{-2}{13}+\dfrac{-7}{13}\right)-\dfrac{8}{13}=\dfrac{5}{9}\cdot\dfrac{-9}{13}-\dfrac{8}{13}=\dfrac{-5}{13}-\dfrac{8}{13}=\dfrac{-13}{13}=-1\)