Subtract 28/54 from 3/28
3/28 - 28/54 is -311/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
3/28 = 3 × 27/28 × 27 = 81/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
28/54 = 28 × 14/54 × 14 = 392/756 - Subtract the two like fractions:
81/756 - 392/756 = 81 - 392/756 = -311/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-28/54 3/28-56/54 3/56-28/54 9/28-28/54 3/28-84/54 3/84-28/54 15/28-28/54 21/28-28/54