The mixed number 42 48/40 written as an improper fraction is 1728/40
To turn the mixed number 42 48/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 42 × 40 = 1680.
After that, add the result to the numerator of the fractional part: 1680 + 48 = 1728.
Next, Write the sum of the previous step on the original denominator: 1728/40.
This means that 42 48/40, as an improper fraction, equals 1728/40.
See also: 42 48/40 as a decimal