Question

Answer 1

\(=\dfrac{18}{13}\times\left(\dfrac{5}{25}-\dfrac{1}{5}\right)=0\)

Answer 2

0

Answer 3

= 0 

Answer 4

\(=\dfrac{18}{13}\left(\dfrac{5}{25}-\dfrac{1}{5}\right)=0\)

Answer 5

\(\dfrac{18}{25}\cdot\dfrac{5}{13}-\dfrac{1}{5}\cdot\dfrac{18}{13}=\dfrac{1}{5}\cdot\dfrac{18}{13}-\dfrac{1}{5}\cdot\dfrac{18}{13}=0\)