Subtract 21/16 from 56/12
1st number: 4 8/12, 2nd number: 1 5/16
56/12 - 21/16 is 161/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
56/12 = 56 × 4/12 × 4 = 224/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
21/16 = 21 × 3/16 × 3 = 63/48 - Subtract the two like fractions:
224/48 - 63/48 = 224 - 63/48 = 161/48 - In mixed form: 317/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-42/16 56/24-21/16 56/12-21/32 56/12-63/16 56/36-21/16 56/12-21/48 56/60-21/16 56/12-21/80 56/84-21/16