No, it is fully reduced.
15/24
4/9
9/11 nine over eleven
3/8
51 over 68 reduced to its smallest form equals three over four.
2 1/4
The mixed number 2 1/4 (two and one over four) = 9/4 (nine over four) as an improper fraction.
reduced fraction of 74 over 160 = 37/80
reduced fraction of 24 over 36 = 2/3
7 over 80 reduced to in a fraction = 7/80
The reduced fraction of 56 over 72 is: 7/9
The reduced fraction for 40 over 100 is 2/5