Question 932002
<pre>

3.25, 29/8, 3.52, 31/9

We divide out the fractions to make them into decimals:

        <u>  3.625</u>             <u>  3.444</u>  
29/8 = 8)29.000     31/9 = 9)31.000
         <u>24</u>                  <u>27</u>
          5 0                 4 0
          <u>4 8</u>                 <u>3 6</u>
            20                  40
            <u>16</u>                  <u>36</u> 
             40                  40
             <u>40</u>                  <u>36</u>
              0                   4

Then we annex a 0 on the ends of 3.25 and 3.52 making them 
3.250 and 3.520

Then we have 5 decimals taken to the same number of decimal 
places:

3.250, 3.625, 3.520, 3.444

Now it's easy to tell now how to arrange them smallest to largest.
Just compare the decimal parts

3.250, 3.444, 3.520, 3.625

or as they were originally:

3.25, 31/9, 3.52, 29/8

Edwin</pre>