Subtract 56/15 from 15/8
1st number: 1 7/8, 2nd number: 3 11/15
15/8 - 56/15 is -223/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
15/8 = 15 × 15/8 × 15 = 225/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
56/15 = 56 × 8/15 × 8 = 448/120 - Subtract the two like fractions:
225/120 - 448/120 = 225 - 448/120 = -223/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8-56/15 15/16-56/15 15/8-56/30 45/8-56/15 15/24-56/15 15/8-56/45 75/8-56/15 15/40-56/15 15/8-56/75 15/56-56/15