Subtract 56/49 from 15/30
1st number: 15/30, 2nd number: 1 7/49
15/30 - 56/49 is -9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 49 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
15/30 = 15 × 49/30 × 49 = 735/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
56/49 = 56 × 30/49 × 30 = 1680/1470 - Subtract the two like fractions:
735/1470 - 1680/1470 = 735 - 1680/1470 = -945/1470 - After reducing the fraction, the answer is -9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/60-56/49 15/30-56/98 45/30-56/49 15/90-56/49 75/30-56/49