fractions mathematical

for fraction there are many different way to make one for example if some take 3/4 of a pie it wouldn't be fair to the other person if they only got 1/4 but add those up and you get 1 whole pie (3/4+1/4=1 whole).There is one fraction that is called an improper fraction that looks like this 14/5you would start dividing 14 by 5 and get 2with a for left so it would be 2 whole 4/5. in the world of science they normally use decimals in stead of fraction for there experiment this is what it looks like this 0.2 there are some thing that you can't put in to a decimal and that is 0.6666666 but you can do this 0.666... which keeps on going. the Egyptians use hieroglyphs for there fraction. the egyptian used harder fraction like 1/168 which was 5/7=1/3+1/4+1/8+1/168 and that some hard fraction.