Subtract 4/49 from 21/14
1st number: 1 7/14, 2nd number: 4/49
21/14 - 4/49 is 139/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 49 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 14 × 7 = 98,
21/14 = 21 × 7/14 × 7 = 147/98 - Likewise, for the 2nd fraction, since 49 × 2 = 98,
4/49 = 4 × 2/49 × 2 = 8/98 - Subtract the two like fractions:
147/98 - 8/98 = 147 - 8/98 = 139/98 - In mixed form: 141/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-4/49 21/14-8/49 21/28-4/49 21/14-4/98 63/14-4/49 21/14-12/49 21/42-4/49 21/14-20/49 21/70-4/49 21/14-28/49 21/98-4/49