Subtract 81/49 from 6/15
1st number: 6/15, 2nd number: 1 32/49
6/15 - 81/49 is -307/245.
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,
6/15 = 6 × 49/15 × 49 = 294/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
81/49 = 81 × 15/49 × 15 = 1215/735 - Subtract the two like fractions:
294/735 - 1215/735 = 294 - 1215/735 = -921/735 - After reducing the fraction, the answer is -307/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15-81/49 6/30-81/49 6/15-81/98 18/15-81/49 6/45-81/49 30/15-81/49 6/75-81/49 42/15-81/49