Subtract 2/4 from 5/18
5/18 - 2/4 is -2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
5/18 = 5 × 2/18 × 2 = 10/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
2/4 = 2 × 9/4 × 9 = 18/36 - Subtract the two like fractions:
10/36 - 18/36 = 10 - 18/36 = -8/36 - 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: 10/18-2/4 5/36-2/4 5/18-2/8 15/18-2/4 5/18-6/4 5/54-2/4 5/18-2/12 25/18-2/4 5/18-10/4 5/90-2/4 5/18-2/20 35/18-2/4 5/18-14/4 5/18-2/28