1. 9/12 divide top and bottom by 3
3/4
now you can multiply the top and bottom by the same number and get an equivalent fraction
3/4 * 2/2 = 6/8
3/4 * 5/5 = 15/20
these are all equivalent fractions to 9/12 = 3/4 = 6/8 = 15/20
2. 16/24
divide the top and bottom by 8
2/3
This is as small as it goes (keep dividing until there is no number that will go into the top and the bottom evenly).
