Answer:
18%, 0.18, .24, 2/7
Explanation:
It's quite simple actually. Try to put them in one format.
For example, decimals:
18% - .18
2/7 - .28 (or 0.28571428571)
.24 - .24
.18 - .1818 (or .1818181818...)
Put them together:
.18, .28, .24, .1818
And re-arrange them.
.18, .1818, .24, .28
From here you can revert them to their original format.
18%, .18, 0.24, 2/7
Hoped this helped!