Mary keeps some animals on her farm.She has 12 sheep,16 cows,24 chickens and 6 pigs. Mary sells 8 of her sheep.What percentage of her remaining animals are sheep?

You need to work out how many animals there are in total first. Mary sells 8 of her sheep so 12-8 = 4 sheep In total she'll have 4+ 16 + 24 + 6 = 50 animals 4/50 = 0.08 0.08 x 100 = 8% - to get a percentage
or 4/50 -> need to make denominator /100 so whatever you do to top, do to bottom -> 8/100 so 8%