Subtract 21/18 from 4/98
1st number: 4/98, 2nd number: 1 3/18
4/98 - 21/18 is -331/294.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
4/98 = 4 × 9/98 × 9 = 36/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
21/18 = 21 × 49/18 × 49 = 1029/882 - Subtract the two like fractions:
36/882 - 1029/882 = 36 - 1029/882 = -993/882 - After reducing the fraction, the answer is -331/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/98-21/18 4/98-42/18 4/98-21/36 12/98-21/18 4/98-63/18 4/98-21/54 20/98-21/18 4/98-21/90 28/98-21/18