Subtract 12/27 from 12/18
12/18 - 12/27 is 2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
12/18 = 12 × 3/18 × 3 = 36/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
12/27 = 12 × 2/27 × 2 = 24/54 - Subtract the two like fractions:
36/54 - 24/54 = 36 - 24/54 = 12/54 - After reducing the fraction, the answer is 2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18-12/27 12/18-24/27 12/36-12/27 12/18-12/54 36/18-12/27 12/18-36/27 12/54-12/27 12/18-12/81 60/18-12/27 12/18-60/27 12/90-12/27 84/18-12/27 12/18-84/27