3 over 4
1/2
12 over 18 in lowest terms is 2/3
12 over 21 in lowest terms = 4/7
12/28 = 3/7 reduced to its lowest terms
14/24 in lowest terms is 7/12. 5/60 in lowest terms is 1/12.
3/2
12 over 30 in lowest terms is 2/5
18/12 = 3/2
in the lowest terms it would be 5 over 12
19 over 12 is in lowest terms, and this is because there is no number that goes into both 19 or 12 besides one. So 19/12 is in lowest terms.
63 over 108 in lowest terms is 7/12