The mixed number 70 21/8 written as an improper fraction is 581/8
To turn the mixed number 70 21/8 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 70 × 8 = 560.
After that, add the result to the numerator of the fractional part: 560 + 21 = 581.
Next, Write the sum of the previous step on the original denominator: 581/8.
This means that 70 21/8, as an improper fraction, equals 581/8.
See also: 70 21/8 as a decimal