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