Subtract 8/9 from 15/54
15/54 - 8/9 is -11/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
15/54 = 15 × 1/54 × 1 = 15/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
8/9 = 8 × 6/9 × 6 = 48/54 - Subtract the two like fractions:
15/54 - 48/54 = 15 - 48/54 = -33/54 - After reducing the fraction, the answer is -11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/54-8/9 15/54-16/9 15/54-8/18 45/54-8/9 15/54-24/9 15/54-8/27 75/54-8/9 15/54-40/9 15/54-8/45 15/54-56/9 15/54-8/63