Subtract 49/20 from 3/12
1st number: 3/12, 2nd number: 2 9/20
3/12 - 49/20 is -11/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
49/20 = 49 × 3/20 × 3 = 147/60 - Subtract the two like fractions:
15/60 - 147/60 = 15 - 147/60 = -132/60 - After reducing the fraction, the answer is -11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-49/20 3/12-98/20 3/24-49/20 3/12-49/40 9/12-49/20 3/36-49/20 3/12-49/60 15/12-49/20 3/60-49/20 21/12-49/20 3/84-49/20