Subtract 21/9 from 15/98
1st number: 15/98, 2nd number: 2 3/9
15/98 - 21/9 is -641/294.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 9 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
15/98 = 15 × 9/98 × 9 = 135/882 - Likewise, for the 2nd fraction, since 9 × 98 = 882,
21/9 = 21 × 98/9 × 98 = 2058/882 - Subtract the two like fractions:
135/882 - 2058/882 = 135 - 2058/882 = -1923/882 - After reducing the fraction, the answer is -641/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/98-21/9 15/98-42/9 15/98-21/18 45/98-21/9 15/98-63/9 15/98-21/27 75/98-21/9 15/98-21/45 15/98-21/63