Okay so we know your problem is 72/60 So, first find out how many times 60 can go into 72 This is 1 so right now we have. 1 12/60 right? Now this still isn't simplest form so what number can go into bolth 12 and 60? 12 right? Okay, so 4 x 3 = 12 so now we have 1 3/60 Now lets deal with 60 15 x 4 = 60. now we have 1 3/15 We can still make it smaller so we know 3 can go into 3 and 15 so lets use 3 1 ~ 3 = 1 so we have 1 1 / 15 5 x 3 = 15 So your answer is....