Subtract 28/12 from 3/18
1st number: 3/18, 2nd number: 2 4/12
3/18 - 28/12 is -13/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
3/18 = 3 × 2/18 × 2 = 6/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
28/12 = 28 × 3/12 × 3 = 84/36 - Subtract the two like fractions:
6/36 - 84/36 = 6 - 84/36 = -78/36 - After reducing the fraction, the answer is -13/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18-28/12 3/18-56/12 3/36-28/12 3/18-28/24 9/18-28/12 3/18-84/12 3/54-28/12 3/18-28/36 15/18-28/12 3/90-28/12 3/18-28/60 21/18-28/12 3/18-28/84