Subtract 3/9 from 4/18
4/18 - 3/9 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,
4/18 = 4 × 1/18 × 1 = 4/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
3/9 = 3 × 2/9 × 2 = 6/18 - Subtract the two like fractions:
4/18 - 6/18 = 4 - 6/18 = -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: 8/18-3/9 4/18-6/9 4/36-3/9 4/18-3/18 12/18-3/9 4/54-3/9 4/18-3/27 20/18-3/9 4/18-15/9 4/90-3/9 4/18-3/45 28/18-3/9 4/18-21/9 4/18-3/63