Subtract 28/54 from 1/2
1/2 - 28/54 is -1/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
1/2 = 1 × 27/2 × 27 = 27/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
28/54 = 28 × 1/54 × 1 = 28/54 - Subtract the two like fractions:
27/54 - 28/54 = 27 - 28/54 = -1/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2-56/54 1/4-28/54 3/2-28/54 1/2-84/54 1/6-28/54 5/2-28/54 1/10-28/54 7/2-28/54 1/14-28/54