Subtract 35/12 from 56/21
1st number: 2 14/21, 2nd number: 2 11/12
56/21 - 35/12 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
56/21 = 56 × 4/21 × 4 = 224/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
35/12 = 35 × 7/12 × 7 = 245/84 - Subtract the two like fractions:
224/84 - 245/84 = 224 - 245/84 = -21/84 - After reducing the fraction, the answer is -1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21-70/12 56/42-35/12 56/21-35/24 56/63-35/12 56/21-35/36 56/21-35/60 56/21-35/84