Subtract 25/8 from 15/49
1st number: 15/49, 2nd number: 3 1/8
15/49 - 25/8 is -1105/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
15/49 = 15 × 8/49 × 8 = 120/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
25/8 = 25 × 49/8 × 49 = 1225/392 - Subtract the two like fractions:
120/392 - 1225/392 = 120 - 1225/392 = -1105/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/49-25/8 15/49-50/8 15/98-25/8 15/49-25/16 45/49-25/8 15/49-75/8 15/49-25/24 75/49-25/8 15/49-25/40 15/49-25/56