The mixed number 54 21/40 written as an improper fraction is 2181/40
To turn the mixed number 54 21/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 54 × 40 = 2160.
After that, add the result to the numerator of the fractional part: 2160 + 21 = 2181.
Next, Write the sum of the previous step on the original denominator: 2181/40.
This means that 54 21/40, as an improper fraction, equals 2181/40.
See also: 54 21/40 as a decimal