Okay I really need someones help urgently with the image attached i'm horrible at mathmatics

And if you could explain it like this,
(c ) 0.36 = 36/100
36/100 = 18/50
18/50 = 9/25

Okay I really need someones help urgently with the image attached im horrible at mathmatics And if you could explain it like this c 036 36100 36100 1850 1850 92 class=