What is 80 21/8 as an improper fraction?

The mixed number 80 21/8 written as an improper fraction is 661/8

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Convert 80 21/8 as an improper fraction

To turn the mixed number 80 21/8 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 80 × 8 = 640.

After that, add the result to the numerator of the fractional part: 640 + 21 = 661.

Next, Write the sum of the previous step on the original denominator: 661/8.

80
21/8
=
80 × 8 + 21/8
=
661/8

This means that 80 21/8, as an improper fraction, equals 661/8.

See also: 80 21/8 as a decimal

Examples of decimal to fraction calculations