math games

How cant i use decimals/fractions and persentages that i cant use one by one and we cant think about fractins like wen you are buying something that is like a fracction.when you are at the store and the ladie and man say is 34.59$ that is like a decimal that is a way that you cant use decimals.And last but not least you cant use persentage like wen you are taking a test and you get all rigt you get 100% and that is good grade and that is way to use persentage.no 1/12 is biger because it haves more pizes.thats all that cant you use for decimakls/fractions and porsentage.the most important thing for meee of rainforest proverty and hudger is rain forests because in the rainforests a lot of animals live thare.how cant i use fractions that you cant count the colors of the animals and it give you a fraction.how cant use the porsentage that you caunt all the animals and it give you a porsentage.and how do it give you a decimal by counting the animals in tootal.