Fractions????

ok lets say we have 2 & 3/4 well what u do is is multiply 2 and 4 and add 3. it's very simple. when you want to find out which fraction is bigger you need to find a common denominator. ok so 7/8 and 12/24. well both denominators go into the number 24. since 12/24 already has 24 as a denominator there's nothing to be done here. for 7/8 you multiply both ends by 3. so 7*3 and 8*3. (3 because 8*3=24. it only matters if the denominator equals 24) so then you get 21/24. obviously 12/24 is bigger. i wrote a lot but it's reaaaaally easy TRUST ME. READ IT CAREFULLY.