Subtract 27/10 from 56/15
1st number: 3 11/15, 2nd number: 2 7/10
56/15 - 27/10 is 31/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
56/15 = 56 × 2/15 × 2 = 112/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
27/10 = 27 × 3/10 × 3 = 81/30 - Subtract the two like fractions:
112/30 - 81/30 = 112 - 81/30 = 31/30 - In mixed form: 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-54/10 56/30-27/10 56/15-27/20 56/15-81/10 56/45-27/10 56/15-27/30 56/75-27/10 56/15-27/50 56/15-27/70