Subtract 21/12 from 56/3
1st number: 18 2/3, 2nd number: 1 9/12
56/3 - 21/12 is 203/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
56/3 = 56 × 4/3 × 4 = 224/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Subtract the two like fractions:
224/12 - 21/12 = 224 - 21/12 = 203/12 - In mixed form: 1611/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/3-42/12 56/6-21/12 56/3-21/24 56/3-63/12 56/9-21/12 56/3-21/36 56/15-21/12 56/3-21/60 56/21-21/12 56/3-21/84