=200/600 - 120/600=80/600=2/15
\(\dfrac{8}{24}-\dfrac{5}{25}=\dfrac{200}{600}-\dfrac{120}{600}=\dfrac{200-120}{600}=\dfrac{80}{600}=\dfrac{2}{15}\)
\(\dfrac{8}{24}-\dfrac{5}{25}=\dfrac{8\times25}{24\times25}-\dfrac{5\times24}{25\times24}=\dfrac{200}{600}-\dfrac{120}{600}=\dfrac{80}{600}=\dfrac{2}{15}\)