Subtract 12/18 from 1/9
1/9 - 12/18 is -5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
1/9 = 1 × 2/9 × 2 = 2/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
12/18 = 12 × 1/18 × 1 = 12/18 - Subtract the two like fractions:
2/18 - 12/18 = 2 - 12/18 = -10/18 - After reducing the fraction, the answer is -5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9-12/18 1/9-24/18 1/18-12/18 1/9-12/36 3/9-12/18 1/9-36/18 1/27-12/18 1/9-12/54 5/9-12/18 1/9-60/18 1/45-12/18 1/9-12/90 7/9-12/18 1/9-84/18 1/63-12/18