Subtract 3/9 from 12/49
12/49 - 3/9 is -13/147.
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,
3/9 = 3 × 49/9 × 49 = 147/441 - Subtract the two like fractions:
108/441 - 147/441 = 108 - 147/441 = -39/441 - After reducing the fraction, the answer is -13/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49-3/9 12/49-6/9 12/98-3/9 12/49-3/18 36/49-3/9 12/49-3/27 60/49-3/9 12/49-15/9 12/49-3/45 84/49-3/9 12/49-21/9 12/49-3/63