Subtract 15/9 from 12/49
1st number: 12/49, 2nd number: 1 6/9
12/49 - 15/9 is -209/147.
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,
12/49 = 12 × 9/49 × 9 = 108/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
15/9 = 15 × 49/9 × 49 = 735/441 - Subtract the two like fractions:
108/441 - 735/441 = 108 - 735/441 = -627/441 - After reducing the fraction, the answer is -209/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49-15/9 12/49-30/9 12/98-15/9 12/49-15/18 36/49-15/9 12/49-45/9 12/49-15/27 60/49-15/9 12/49-75/9 12/49-15/45 84/49-15/9 12/49-15/63