Subtract 80/18 from 49/12
1st number: 4 1/12, 2nd number: 4 8/18
49/12 - 80/18 is -13/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
49/12 = 49 × 3/12 × 3 = 147/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
80/18 = 80 × 2/18 × 2 = 160/36 - Subtract the two like fractions:
147/36 - 160/36 = 147 - 160/36 = -13/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-80/18 49/24-80/18 49/12-80/36 49/36-80/18 49/12-80/54 49/60-80/18 49/12-80/90 49/84-80/18