Subtract 12/9 from 15/49
1st number: 15/49, 2nd number: 1 3/9
15/49 - 12/9 is -151/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
15/49 = 15 × 9/49 × 9 = 135/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
12/9 = 12 × 49/9 × 49 = 588/441 - Subtract the two like fractions:
135/441 - 588/441 = 135 - 588/441 = -453/441 - After reducing the fraction, the answer is -151/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/49-12/9 15/49-24/9 15/98-12/9 15/49-12/18 45/49-12/9 15/49-36/9 15/49-12/27 75/49-12/9 15/49-60/9 15/49-12/45 15/49-84/9 15/49-12/63