To convert the whole number 250 into a decimal, you simply write it as is with a decimal point at the end. Thus, 250 as a decimal is 250.0.
For converting 250 into a fraction, you can express it as a fraction with 1 as the denominator. This gives you → 250/1. Since 250 is a whole number, it can also be simplified in fraction form to represent any equivalent fractions, such as 500/2 or 1000/4.
In summary, 250 is 250.0 in decimal form and 250/1 in fraction form.