What is 20 57/80 as an improper fraction?

The mixed number 20 57/80 written as an improper fraction is 1657/80

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Convert 20 57/80 as an improper fraction

To turn the mixed number 20 57/80 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 20 × 80 = 1600.

After that, add the result to the numerator of the fractional part: 1600 + 57 = 1657.

Next, Write the sum of the previous step on the original denominator: 1657/80.

20
57/80
=
20 × 80 + 57/80
=
1657/80

This means that 20 57/80, as an improper fraction, equals 1657/80.

See also: 20 57/80 as a decimal

Examples of decimal to fraction calculations