First, let's turn the fractions into decimal form so you can see the answer, more clearly.
2

= 2.25
2.4 = 2.4
2

= 2.125
Now, after looking at the decimals, we can see which decimals are the biggest. They would order, from least to greatest, like this.
1) 2.42) 2.253) 2.125I hope this helps!