Subtract 63/49 from 12/15
1st number: 12/15, 2nd number: 1 14/49
12/15 - 63/49 is -17/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
12/15 = 12 × 49/15 × 49 = 588/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
63/49 = 63 × 15/49 × 15 = 945/735 - Subtract the two like fractions:
588/735 - 945/735 = 588 - 945/735 = -357/735 - After reducing the fraction, the answer is -17/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15-63/49 12/30-63/49 12/15-63/98 36/15-63/49 12/45-63/49 60/15-63/49 12/75-63/49 84/15-63/49