Subtract 5/9 from 12/18
12/18 - 5/9 is 1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
12/18 = 12 × 1/18 × 1 = 12/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
5/9 = 5 × 2/9 × 2 = 10/18 - Subtract the two like fractions:
12/18 - 10/18 = 12 - 10/18 = 2/18 - After reducing the fraction, the answer is 1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18-5/9 12/18-10/9 12/36-5/9 12/18-5/18 36/18-5/9 12/18-15/9 12/54-5/9 12/18-5/27 60/18-5/9 12/18-25/9 12/90-5/9 12/18-5/45 84/18-5/9 12/18-35/9 12/18-5/63