Final answer:
To order the given numbers from greatest to least, compare their values and put them in order: 3/4, 2/3, 0.54, 0.15, -1/4, -0.42, -3/4.
Step-by-step explanation:
To order the given numbers from greatest to least, we need to compare their values. Let's begin:
- -3/4 is a negative fraction.
 - -0.42 is a negative decimal.
 - 0.15 is a positive decimal.
 - -1/4 is a negative fraction.
 - 2/3 is a positive fraction.
 - 0.54 is a positive decimal.
 - 3/4 is a positive fraction.
 
Ordering the numbers from greatest to least, we have:
- 3/4
 - 2/3
 - 0.54
 - 0.15
 - -1/4
 - -0.42
 - -3/4