Subtract 24/27 from 15/18
15/18 - 24/27 is -1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
15/18 = 15 × 3/18 × 3 = 45/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
24/27 = 24 × 2/27 × 2 = 48/54 - Subtract the two like fractions:
45/54 - 48/54 = 45 - 48/54 = -3/54 - After reducing the fraction, the answer is -1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-24/27 15/18-48/27 15/36-24/27 15/18-24/54 45/18-24/27 15/18-72/27 15/54-24/27 15/18-24/81 75/18-24/27 15/90-24/27