The mixed number 77 31/20 written as an improper fraction is 1571/20
To turn the mixed number 77 31/20 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 77 × 20 = 1540.
After that, add the result to the numerator of the fractional part: 1540 + 31 = 1571.
Next, Write the sum of the previous step on the original denominator: 1571/20.
This means that 77 31/20, as an improper fraction, equals 1571/20.
See also: 77 31/20 as a decimal