Subtract 56/12 from 81/4
1st number: 20 1/4, 2nd number: 4 8/12
81/4 - 56/12 is 187/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
81/4 = 81 × 3/4 × 3 = 243/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
56/12 = 56 × 1/12 × 1 = 56/12 - Subtract the two like fractions:
243/12 - 56/12 = 243 - 56/12 = 187/12 - In mixed form: 157/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8-56/12 81/4-56/24 81/12-56/12 81/4-56/36 81/20-56/12 81/4-56/60 81/28-56/12 81/4-56/84