1) To place from the least to greatest, first, let's divide all numbers:
1/3 = 0.33
0.3
2/7 = 0.29
28% = 28/100 = 0.28
2) Let's observe the order in the image:
3) Writing from the least to the greatest:
0.28, 0.29, 0.3, 0.33
Or
28%, 2/7, 0.3, 1/3.
Answer: 28%, 2/7, 0.3, 1/3.