Answer:
From least to greatest 
Step-by-step explanation:
Given : Numbers 
To find : What is numbers from least to greatest ?
Solution :
Writing all numbers in one way i.e. in fraction.

Now to compare we have to make their denominator same.
So, Taking LCM of 5,3,20.

Multiply and divide
by 12

Multiply and divide
by 20

Multiply and divide
by 3

Comparing numerators,
36 <39 <40
i.e. 


Therefore, From least to greatest 