What is 12 21/8 as an improper fraction?

The mixed number 12 21/8 written as an improper fraction is 117/8

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Convert 12 21/8 as an improper fraction

To turn the mixed number 12 21/8 into an improper fraction, use these simple steps:

First, multiply the whole number by the denominator of the fractional part: 12 × 8 = 96.

After that, add the result to the numerator of the fractional part: 96 + 21 = 117.

Next, Write the sum of the previous step on the original denominator: 117/8.

12
21/8
=
12 × 8 + 21/8
=
117/8

This means that 12 21/8, as an improper fraction, equals 117/8.

See also: 12 21/8 as a decimal

Examples of decimal to fraction calculations