What is 21 2/8 as an improper fraction?

The mixed number 21 2/8 written as an improper fraction is 170/8

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Convert 21 2/8 as an improper fraction

To turn the mixed number 21 2/8 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 21 × 8 = 168.

After that, add the result to the numerator of the fractional part: 168 + 2 = 170.

Next, Write the sum of the previous step on the original denominator: 170/8.

21
2/8
=
21 × 8 + 2/8
=
170/8

This means that 21 2/8, as an improper fraction, equals 170/8.

See also: 21 2/8 as a decimal

Examples of decimal to fraction calculations