Subtract 10/98 from 1/21
1/21 - 10/98 is -8/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 21 × 14 = 294,
1/21 = 1 × 14/21 × 14 = 14/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
10/98 = 10 × 3/98 × 3 = 30/294 - Subtract the two like fractions:
14/294 - 30/294 = 14 - 30/294 = -16/294 - After reducing the fraction, the answer is -8/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21-10/98 1/21-20/98 1/42-10/98 3/21-10/98 1/21-30/98 1/63-10/98 5/21-10/98 1/21-50/98 7/21-10/98 1/21-70/98