Subtract 20/28 from 1/6
1/6 - 20/28 is -23/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
1/6 = 1 × 14/6 × 14 = 14/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
20/28 = 20 × 3/28 × 3 = 60/84 - Subtract the two like fractions:
14/84 - 60/84 = 14 - 60/84 = -46/84 - After reducing the fraction, the answer is -23/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/6-20/28 1/6-40/28 1/12-20/28 1/6-20/56 3/6-20/28 1/6-60/28 1/18-20/28 1/6-20/84 5/6-20/28 1/30-20/28 7/6-20/28 1/42-20/28