Subtract 45/28 from 30/98
1st number: 30/98, 2nd number: 1 17/28
30/98 - 45/28 is -255/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 28 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 98 × 2 = 196,
30/98 = 30 × 2/98 × 2 = 60/196 - Likewise, for the 2nd fraction, since 28 × 7 = 196,
45/28 = 45 × 7/28 × 7 = 315/196 - Subtract the two like fractions:
60/196 - 315/196 = 60 - 315/196 = -255/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/98-45/28 30/98-90/28 30/98-45/56 90/98-45/28 30/98-45/84