Subtract 15/28 from 1/2
1/2 - 15/28 is -1/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
1/2 = 1 × 14/2 × 14 = 14/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
15/28 = 15 × 1/28 × 1 = 15/28 - Subtract the two like fractions:
14/28 - 15/28 = 14 - 15/28 = -1/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2-30/28 1/4-15/28 1/2-15/56 3/2-15/28 1/2-45/28 1/6-15/28 1/2-15/84 5/2-15/28 1/2-75/28 1/10-15/28 7/2-15/28 1/14-15/28