Subtract 56/45 from 15/7
1st number: 2 1/7, 2nd number: 1 11/45
15/7 - 56/45 is 283/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
15/7 = 15 × 45/7 × 45 = 675/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
56/45 = 56 × 7/45 × 7 = 392/315 - Subtract the two like fractions:
675/315 - 392/315 = 675 - 392/315 = 283/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-56/45 15/14-56/45 15/7-56/90 45/7-56/45 15/21-56/45 75/7-56/45 15/35-56/45 15/49-56/45