Subtract 15/54 from 8/12
8/12 - 15/54 is 7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
8/12 = 8 × 9/12 × 9 = 72/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
15/54 = 15 × 2/54 × 2 = 30/108 - Subtract the two like fractions:
72/108 - 30/108 = 72 - 30/108 = 42/108 - After reducing the fraction, the answer is 7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12-15/54 8/12-30/54 8/24-15/54 24/12-15/54 8/12-45/54 8/36-15/54 40/12-15/54 8/12-75/54 8/60-15/54 56/12-15/54 8/84-15/54