What is 21 3/40 as an improper fraction?

The mixed number 21 3/40 written as an improper fraction is 843/40

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Convert 21 3/40 as an improper fraction

To turn the mixed number 21 3/40 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 21 × 40 = 840.

After that, add the result to the numerator of the fractional part: 840 + 3 = 843.

Next, Write the sum of the previous step on the original denominator: 843/40.

21
3/40
=
21 × 40 + 3/40
=
843/40

This means that 21 3/40, as an improper fraction, equals 843/40.

See also: 21 3/40 as a decimal

Examples of decimal to fraction calculations