Subtract 3/98 from 21/14
1st number: 1 7/14, 2nd number: 3/98
21/14 - 3/98 is 72/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 98 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 98 × 1 = 98,
3/98 = 3 × 1/98 × 1 = 3/98 - Subtract the two like fractions:
147/98 - 3/98 = 147 - 3/98 = 144/98 - After reducing the fraction, the answer is 72/49
- In mixed form: 123/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-3/98 21/14-6/98 21/28-3/98 63/14-3/98 21/14-9/98 21/42-3/98 21/14-15/98 21/70-3/98 21/14-21/98 21/98-3/98