What is 21 57/20 as an improper fraction?

Convert 21 57/20 as an improper fraction

To turn the mixed number 21 57/20 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 21 × 20 = 420.

After that, add the result to the numerator of the fractional part: 420 + 57 = 477.

Next, Write the sum of the previous step on the original denominator: 477/20.

This means that 21 57/20, as an improper fraction, equals 477/20.

See also: 21 57/20 as a decimal

Examples of decimal to fraction calculations

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