Subtract 3/12 from 15/54
15/54 - 3/12 is 1/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
15/54 = 15 × 2/54 × 2 = 30/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
3/12 = 3 × 9/12 × 9 = 27/108 - Subtract the two like fractions:
30/108 - 27/108 = 30 - 27/108 = 3/108 - After reducing the fraction, the answer is 1/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/54-3/12 15/54-6/12 15/54-3/24 45/54-3/12 15/54-9/12 15/54-3/36 75/54-3/12 15/54-15/12 15/54-3/60 15/54-21/12 15/54-3/84