The mixed number 21 71/16 written as an improper fraction is 407/16
To turn the mixed number 21 71/16 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 21 × 16 = 336.
After that, add the result to the numerator of the fractional part: 336 + 71 = 407.
Next, Write the sum of the previous step on the original denominator: 407/16.
This means that 21 71/16, as an improper fraction, equals 407/16.
See also: 21 71/16 as a decimal