Subtract 21/12 from 12/14
1st number: 12/14, 2nd number: 1 9/12
1214 - 2112 is -2528.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
1214 = 12 × 614 × 6 = 7284 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
2112 = 21 × 712 × 7 = 14784 - Subtract the two like fractions:
7284 - 14784 = 72 - 14784 = -7584 - After reducing the fraction, the answer is -2528
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14-21/12 12/14-42/12 12/28-21/12 12/14-21/24 36/14-21/12 12/14-63/12 12/42-21/12 12/14-21/36 60/14-21/12 12/70-21/12 12/14-21/60 84/14-21/12 12/98-21/12 12/14-21/84