rewrite them as decimals then compare them.
3/4 = 0.75
5/6 = 0.833
7/9 = 0.778
1/2 = 0.50
2/3 = 0.667
7/12 = 0.583
15/24 = 0.625
from biggest to smallest
5/6,, 7/9, 3/4, 2/3, 15/24, 7/12, 1/2
