Answer:
0.1, 1/4, 40%, 9/7
Explanation:
Let's break this down. 9/7, 0.1, 1/4, and 40%. Firstly, we need to change these all into the same thing, and I'll choose percent since it will be the easiest. 9/7 is over 100%, so it will automatically be our greatest.
0.1 changes to 10% and 1/4 changes to 25%.
This would make our list go 10%, 25%, 40%, >100%.
Change them back to their normal forms and you have your list:
0.1, 1/4, 40%, 9/7