Subtract 25/81 from 98/5
1st number: 19 3/5, 2nd number: 25/81
98/5 - 25/81 is 7813/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
98/5 = 98 × 81/5 × 81 = 7938/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
25/81 = 25 × 5/81 × 5 = 125/405 - Subtract the two like fractions:
7938/405 - 125/405 = 7938 - 125/405 = 7813/405 - In mixed form: 19118/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/5-50/81 98/10-25/81 98/5-75/81 98/15-25/81 98/25-25/81 98/35-25/81