Subtract 15/49 from 42/12
1st number: 3 6/12, 2nd number: 15/49
42/12 - 15/49 is 313/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 12 × 49 = 588,
42/12 = 42 × 49/12 × 49 = 2058/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
15/49 = 15 × 12/49 × 12 = 180/588 - Subtract the two like fractions:
2058/588 - 180/588 = 2058 - 180/588 = 1878/588 - After reducing the fraction, the answer is 313/98
- In mixed form: 319/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-15/49 42/12-30/49 42/24-15/49 42/12-15/98 42/12-45/49 42/36-15/49 42/12-75/49 42/60-15/49 42/84-15/49