Subtract 5/28 from 1/18
1/18 - 5/28 is -31/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
1/18 = 1 × 14/18 × 14 = 14/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
5/28 = 5 × 9/28 × 9 = 45/252 - Subtract the two like fractions:
14/252 - 45/252 = 14 - 45/252 = -31/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18-5/28 1/18-10/28 1/36-5/28 1/18-5/56 3/18-5/28 1/18-15/28 1/54-5/28 1/18-5/84 5/18-5/28 1/18-25/28 1/90-5/28 7/18-5/28 1/18-35/28