Put all the digits to the same denominator. To do that, find the least common multiple of the denominators, and multiply each digit by it:
-36/60, -40/60, -48/60, -45/60
Since they're all negative, the largest digit is the least.So the order from least to greatest is:
-0.8, -3/4, -2/3, -3/5
Hope this helps!