ANSWER

Step-by-step explanation
We have the numbers:

To arrange them in order of least to greatest, let us convert all the numbers to decimal.
We have:

Now, we can arrange them.
The negative number will be the least because it is less than positive numbers and even 0 in value.
Then, they will be folowed by 0 and then the positive numbers.
That is:

So, the correct order is:
