Subtract 35/21 from 14/12
1st number: 1 2/12, 2nd number: 1 14/21
14/12 - 35/21 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
14/12 = 14 × 7/12 × 7 = 98/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
35/21 = 35 × 4/21 × 4 = 140/84 - Subtract the two like fractions:
98/84 - 140/84 = 98 - 140/84 = -42/84 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/12-35/21 14/12-70/21 14/24-35/21 14/12-35/42 42/12-35/21 14/36-35/21 14/12-35/63 70/12-35/21 14/60-35/21 98/12-35/21 14/84-35/21