Subtract 15/18 from 2/4
2/4 - 15/18 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
2/4 = 2 × 9/4 × 9 = 18/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Subtract the two like fractions:
18/36 - 30/36 = 18 - 30/36 = -12/36 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-30/18 2/8-15/18 2/4-15/36 6/4-15/18 2/4-45/18 2/12-15/18 2/4-15/54 10/4-15/18 2/4-75/18 2/20-15/18 2/4-15/90 14/4-15/18 2/28-15/18