Subtract 28/8 from 12/49
1st number: 12/49, 2nd number: 3 4/8
12/49 - 28/8 is -319/98.
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,
12/49 = 12 × 8/49 × 8 = 96/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
28/8 = 28 × 49/8 × 49 = 1372/392 - Subtract the two like fractions:
96/392 - 1372/392 = 96 - 1372/392 = -1276/392 - After reducing the fraction, the answer is -319/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49-28/8 12/49-56/8 12/98-28/8 12/49-28/16 36/49-28/8 12/49-84/8 12/49-28/24 60/49-28/8 12/49-28/40 84/49-28/8 12/49-28/56