Answer :
If you're looking to put them in order from least to greatest , it'll be 1 3/10 , 1.6 , 1 5/8 . You have to make the fractions into decimals

Step-by-step explanation:
We need to write the given numbers in order
[tex]1 \frac{5}{8} = \frac{1*8+5}{8} =\frac{13}{8}[/tex]
[tex]1 \frac{3}{10} = \frac{1*10+3}{10} =\frac{13}{10}[/tex]
Now convert the fraction into decimals
[tex]\frac{13}{8} =1.625[/tex]
[tex]\frac{13}{10} =1.3[/tex]
We are given with 1.6 as well
so numbers are 1.625, 1.3, 1.6
Now we write it in order
Ascending order : 1.3, 1.6, 1.625
[tex]1\frac{3}{10} , 1.6, 1\frac{5}{8}[/tex]
Descending order is
[tex]1\frac{5}{8}, 1.6, 1\frac{3}{10} [/tex]