Number lines are used to compare numbers at a regular interval.
In increasing order, the numbers are: -1.2, -1/5, 0.5 and 0.6
The numbers are given as:
[tex]\mathbf{Numbers = 3/5, 0.5, -1.2, -1/5}[/tex]
Convert to decimal
[tex]\mathbf{Numbers = 0.6, 0.5, -1.2, -0.2}[/tex]
Order from least to highest
[tex]\mathbf{Numbers = -1.2,\ -0.2,\ 0.5,\ 0.6}[/tex]
Return numbers to original form
[tex]\mathbf{Numbers = -1.2,\ -1/5,\ 0.5,\ 3/5}[/tex]
See attachment for number line
Hence, the numbers in increasing order are: -1.2, -1/5, 0.5 and 0.6
Read more about number lines at:
https://brainly.com/question/18611090