Put in order from least to greatest
-6.1. 5.9 -6 1/4 26/5 -5 5/8

Let's make everything a decimal first.
-6.1
5.9
-6.25
26/5 = 5 1/5 = 5.20
-5 5/8 = -5.625

Negatives go first.. -6.25, -6.1, -5.625, 5.20, 5.9

-6,1 < -6 < -5 < 26/5 < 5/8 < 1/4 < 5,9

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.