Subtract 56/54 from 21/10
1st number: 2 1/10, 2nd number: 1 2/54
21/10 - 56/54 is 287/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
21/10 = 21 × 27/10 × 27 = 567/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
56/54 = 56 × 5/54 × 5 = 280/270 - Subtract the two like fractions:
567/270 - 280/270 = 567 - 280/270 = 287/270 - In mixed form: 117/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-56/54 21/20-56/54 63/10-56/54 21/30-56/54 21/50-56/54 21/70-56/54