The mixed number 30 42/40 written as an improper fraction is 1242/40
To turn the mixed number 30 42/40 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 30 × 40 = 1200.
After that, add the result to the numerator of the fractional part: 1200 + 42 = 1242.
Next, Write the sum of the previous step on the original denominator: 1242/40.
This means that 30 42/40, as an improper fraction, equals 1242/40.
See also: 30 42/40 as a decimal