The mixed number 64 77/20 written as an improper fraction is 1357/20
To turn the mixed number 64 77/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 64 × 20 = 1280.
After that, add the result to the numerator of the fractional part: 1280 + 77 = 1357.
Next, Write the sum of the previous step on the original denominator: 1357/20.
This means that 64 77/20, as an improper fraction, equals 1357/20.
See also: 64 77/20 as a decimal