What is 31 18/20 as an improper fraction?

The mixed number 31 18/20 written as an improper fraction is 638/20

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Convert 31 18/20 as an improper fraction

To turn the mixed number 31 18/20 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 31 × 20 = 620.

After that, add the result to the numerator of the fractional part: 620 + 18 = 638.

Next, Write the sum of the previous step on the original denominator: 638/20.

31
18/20
=
31 × 20 + 18/20
=
638/20

This means that 31 18/20, as an improper fraction, equals 638/20.

See also: 31 18/20 as a decimal

Examples of decimal to fraction calculations