Subtract 80/49 from 21/12
1st number: 1 9/12, 2nd number: 1 31/49
21/12 - 80/49 is 23/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 12 × 49 = 588,
21/12 = 21 × 49/12 × 49 = 1029/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
80/49 = 80 × 12/49 × 12 = 960/588 - Subtract the two like fractions:
1029/588 - 960/588 = 1029 - 960/588 = 69/588 - After reducing the fraction, the answer is 23/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12-80/49 21/24-80/49 21/12-80/98 63/12-80/49 21/36-80/49 21/60-80/49 21/84-80/49