Subtract 20/49 from 12/8
1st number: 1 4/8, 2nd number: 20/49
12/8 - 20/49 is 107/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 8 × 49 = 392,
12/8 = 12 × 49/8 × 49 = 588/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
20/49 = 20 × 8/49 × 8 = 160/392 - Subtract the two like fractions:
588/392 - 160/392 = 588 - 160/392 = 428/392 - After reducing the fraction, the answer is 107/98
- In mixed form: 19/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8-20/49 12/8-40/49 12/16-20/49 12/8-20/98 36/8-20/49 12/8-60/49 12/24-20/49 60/8-20/49 12/40-20/49 84/8-20/49 12/56-20/49