Subtract 8/54 from 7/12
7/12 - 8/54 is 47/108.
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,
7/12 = 7 × 9/12 × 9 = 63/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
8/54 = 8 × 2/54 × 2 = 16/108 - Subtract the two like fractions:
63/108 - 16/108 = 63 - 16/108 = 47/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-8/54 7/12-16/54 7/24-8/54 21/12-8/54 7/12-24/54 7/36-8/54 35/12-8/54 7/12-40/54 7/60-8/54 49/12-8/54 7/12-56/54 7/84-8/54