Identify whole number part: To convert 3.81 to a mixed number, first identify the whole number part and the decimal part. The whole number is 3.
Convert decimal to fraction: The decimal part is .81, which can be written as a fraction. To do this, consider .81 as 81 hundredths, which is 10081.
Simplify fraction: Now, simplify the fraction 10081. Both the numerator and the denominator are divisible by 1, so the fraction is already in its simplest form.
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