Subtract 7/54 from 3/18
3/18 - 7/54 is 1/27.
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,
3/18 = 3 × 3/18 × 3 = 9/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
7/54 = 7 × 1/54 × 1 = 7/54 - Subtract the two like fractions:
9/54 - 7/54 = 9 - 7/54 = 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: 6/18-7/54 3/18-14/54 3/36-7/54 9/18-7/54 3/18-21/54 3/54-7/54 15/18-7/54 3/18-35/54 3/90-7/54 21/18-7/54 3/18-49/54