Subtract 30/54 from 1/18
1/18 - 30/54 is -1/2.
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,
1/18 = 1 × 3/18 × 3 = 3/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
30/54 = 30 × 1/54 × 1 = 30/54 - Subtract the two like fractions:
3/54 - 30/54 = 3 - 30/54 = -27/54 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18-30/54 1/18-60/54 1/36-30/54 3/18-30/54 1/18-90/54 1/54-30/54 5/18-30/54 1/90-30/54 7/18-30/54