The terms used to identify `3 1/4` and `3.25` would be "mixed number" (which is a whole number and a fraction) and "decimal fraction," respectively. The two are equal to each other.
However, whe you add the percentage sign to the `3.25`
this changes the decimal fraction from 3.25 to
`3.25/100` as the symbol % means "out of 100"
To convert this back to a decimal fraction do the division:
`3.25% = 0.0325`
To compare your new decimal fraction to a standard fraction you would simplify it. It is no longer a mixed number as it is smaller than 1 so there is no whole number:
`0,0325= 13/400` in its simplified form.
So to explain the difference -
A percentage sign means that a number must be divided by 100 as % (percent) means "out of 100" so the difference between `3 1/4 and 3.25%` is that the decimal fraction must be over 100 and `3.25/100` is not equivalent to `3 1/4`
3 1/4 and 3.25% are two ways of writing numbers. To compare them, we must make both in the same form.
3.25% can be written as 3.25/100
Now its easy to see that 3 and 1/4 is definitely larger than 3.25/100. The key to this is to remember what a percent means.