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