Answer:

3/5

Step-by-step explanation:

1/2 = 0.5

3/4 = 0.75

3/5 = 0.6

1/2 < 0.6 < 3/4

2/5 = 0.4 < 1/2

4/5 = 0.8 > 3/4

4/9 = 0.44 < 1/2

Step-by-step explanation:

the answer would be the most beautyful answer and it os b