What is 21 30/80 as an improper fraction?

The mixed number 21 30/80 written as an improper fraction is 1710/80

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Convert 21 30/80 as an improper fraction

To turn the mixed number 21 30/80 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 21 × 80 = 1680.

After that, add the result to the numerator of the fractional part: 1680 + 30 = 1710.

Next, Write the sum of the previous step on the original denominator: 1710/80.

21
30/80
=
21 × 80 + 30/80
=
1710/80

This means that 21 30/80, as an improper fraction, equals 1710/80.

See also: 21 30/80 as a decimal

Examples of decimal to fraction calculations