Subtract 5/9 from 28/54
28/54 - 5/9 is -1/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
28/54 = 28 × 1/54 × 1 = 28/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
5/9 = 5 × 6/9 × 6 = 30/54 - Subtract the two like fractions:
28/54 - 30/54 = 28 - 30/54 = -2/54 - After reducing the fraction, the answer is -1/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54-5/9 28/54-10/9 28/54-5/18 84/54-5/9 28/54-15/9 28/54-5/27 28/54-25/9 28/54-5/45 28/54-35/9 28/54-5/63