Question

27/5-((-15)/7-3/5)+(2/9-8/7)

Answer 1

\(=\dfrac{27}{5}+\dfrac{15}{7}+\dfrac{3}{5}+\dfrac{2}{9}-\dfrac{8}{7}=\left(\dfrac{27}{5}+\dfrac{3}{5}\right)+\left(\dfrac{15}{7}-\dfrac{9}{7}\right)+\dfrac{2}{9}=\dfrac{30}{5}+\dfrac{7}{7}+\dfrac{2}{9}\\ =6+1+\dfrac{2}{9}=7+\dfrac{2}{9}=\dfrac{65}{9}\)

Answer 2

`27/5 - ( (-15)/7 - 3/5) + (2/9 - 8/7)`

`=27/5 + 15/7 + 3/5 + 2/9 - 8/7`

`=(27/5 + 3/5 ) + (15/7 -8/7) + 2/9`

`=30/5 + 7/7 + 2/9`

`=6 + 1 + 2/9`

`=7 + 2/9`

`=63/9 + 2/9`

`=65/9`