Subtract 28/6 from 20/12
1st number: 1 8/12, 2nd number: 4 4/6
20/12 - 28/6 is -3/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 6 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
20/12 = 20 × 1/12 × 1 = 20/12 - Likewise, for the 2nd fraction, since 6 × 2 = 12,
28/6 = 28 × 2/6 × 2 = 56/12 - Subtract the two like fractions:
20/12 - 56/12 = 20 - 56/12 = -36/12 - After reducing the fraction, the answer is -3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-28/6 20/12-56/6 20/24-28/6 20/12-28/12 60/12-28/6 20/12-84/6 20/36-28/6 20/12-28/18 20/60-28/6 20/12-28/30 20/84-28/6 20/12-28/42