Subtract 45/98 from 81/28
1st number: 2 25/28, 2nd number: 45/98
81/28 - 45/98 is 477/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 98 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
81/28 = 81 × 7/28 × 7 = 567/196 - Likewise, for the 2nd fraction, since 98 × 2 = 196,
45/98 = 45 × 2/98 × 2 = 90/196 - Subtract the two like fractions:
567/196 - 90/196 = 567 - 90/196 = 477/196 - In mixed form: 285/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/28-90/98 81/56-45/98 81/84-45/98