What is 3.275 as a mixed number?

To convert 3.275 to a mixed number, we first write the whole number part, which is 3. The fractional part is 0.275. To convert this decimal to a fraction, we take the decimal part (275) over the place value of the last digit (1000) to get 275/1000. Simplifying this fraction gives us 11/40. Therefore, 3.275 as a mixed number is 3 11/40.