The mixed number 7 70/80 written as an improper fraction is 630/80
To turn the mixed number 7 70/80 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 7 × 80 = 560.
After that, add the result to the numerator of the fractional part: 560 + 70 = 630.
Next, Write the sum of the previous step on the original denominator: 630/80.
This means that 7 70/80, as an improper fraction, equals 630/80.
See also: 7 70/80 as a decimal