Given expression:
To simplify the expression as a fraction in simplest form, let us multiply both terms by 10. Then, both terms must also be divided by 10.
![\implies \dfrac{[10(0.8) - 10(0.6)]}{10}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cdfrac%7B%5B10%280.8%29%20-%2010%280.6%29%5D%7D%7B10%7D)
![\implies \dfrac{[8 - 6]}{10}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cdfrac%7B%5B8%20-%206%5D%7D%7B10%7D)
![\implies \dfrac{[2]}{10} = \dfrac{2}{10}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cdfrac%7B%5B2%5D%7D%7B10%7D%20%3D%20%5Cdfrac%7B2%7D%7B10%7D)
When 2/10 is simplified in lowest terms, we get;

Therefore, 0.8 - 0.6 in fraction form is 1/5.
To me It looks like they are all solutions except for (2, -4). Hope that helps!
Answer: "...in descending order."
There you go.
Answer:
Its 0
Step-by-step explanation: