Subtract 7/21 from 14/98
14/98 - 7/21 is -4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
14/98 = 14 × 3/98 × 3 = 42/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
7/21 = 7 × 14/21 × 14 = 98/294 - Subtract the two like fractions:
42/294 - 98/294 = 42 - 98/294 = -56/294 - After reducing the fraction, the answer is -4/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/98-7/21 14/98-14/21 14/98-7/42 42/98-7/21 14/98-7/63 70/98-7/21 14/98-35/21 14/98-49/21