Identify Whole Number and Decimal: To express 3.81 as a mixed number, we first identify the whole number part and the decimal part. The whole number part is the number to the left of the decimal point, and the decimal part is the number to the right of the decimal point.In 3.81, the whole number part is 3, and the decimal part is .81.
Express Decimal as Fraction: Next, we need to express the decimal part as a fraction. Since .81 has two digits after the decimal point, we can write it over 100 to convert it into a fraction.So, .81 as a fraction is 10081.
Simplify Fraction: Now, we simplify the fraction 10081 if possible. Since 81 and 100 have a common factor of 1, the fraction is already in its simplest form.So, 10081 remains as it is.
Combine Whole Number and Fraction: Finally, we combine the whole number part with the simplified fraction to form the mixed number.The mixed number is 3 and 10081.
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