Answer:
3-4, 7/10, 71%, 0.72
Explanation:
3-4 is definitely the least, because 3-4 = -1, and this is the only negative number.
Next, we put the other three numbers in the same form to compare more easily.
7/10 = 70/100 = 70%
0.72 = 72/100 = 72%
and 71% is already in percent form, so no need to convert it.
Now we have these three percentages, it is easy to compare:
70%, 71%, 72%
Which is 7/10, 71%, 0.72
Adding the negative number mentioned at first, we get
3-4, 7/10, 71%, 0.72