Subtract 10/18 from 12/54
12/54 - 10/18 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
12/54 = 12 × 1/54 × 1 = 12/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
10/18 = 10 × 3/18 × 3 = 30/54 - Subtract the two like fractions:
12/54 - 30/54 = 12 - 30/54 = -18/54 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54-10/18 12/54-20/18 12/54-10/36 36/54-10/18 12/54-30/18 12/54-10/54 60/54-10/18 12/54-50/18 12/54-10/90 84/54-10/18 12/54-70/18