Subtract 28/18 from 5/27
1st number: 5/27, 2nd number: 1 10/18
5/27 - 28/18 is -37/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
5/27 = 5 × 2/27 × 2 = 10/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
28/18 = 28 × 3/18 × 3 = 84/54 - Subtract the two like fractions:
10/54 - 84/54 = 10 - 84/54 = -74/54 - After reducing the fraction, the answer is -37/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/27-28/18 5/27-56/18 5/54-28/18 5/27-28/36 15/27-28/18 5/27-84/18 5/81-28/18 5/27-28/54 25/27-28/18 5/27-28/90 35/27-28/18