What is 4 90/20 as an improper fraction?

The mixed number 4 90/20 written as an improper fraction is 170/20

/
=
/

Convert 4 90/20 as an improper fraction

To turn the mixed number 4 90/20 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 4 × 20 = 80.

After that, add the result to the numerator of the fractional part: 80 + 90 = 170.

Next, Write the sum of the previous step on the original denominator: 170/20.

4
90/20
=
4 × 20 + 90/20
=
170/20

This means that 4 90/20, as an improper fraction, equals 170/20.

See also: 4 90/20 as a decimal

Examples of decimal to fraction calculations