Subtract 15/27 from 2/18
2/18 - 15/27 is -4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
2/18 = 2 × 3/18 × 3 = 6/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
15/27 = 15 × 2/27 × 2 = 30/54 - Subtract the two like fractions:
6/54 - 30/54 = 6 - 30/54 = -24/54 - After reducing the fraction, the answer is -4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-15/27 2/18-30/27 2/36-15/27 2/18-15/54 6/18-15/27 2/18-45/27 2/54-15/27 2/18-15/81 10/18-15/27 2/18-75/27 2/90-15/27 14/18-15/27