Subtract 30/27 from 15/54
1st number: 15/54, 2nd number: 1 3/27
15/54 - 30/27 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 27 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 27 × 2 = 54,
30/27 = 30 × 2/27 × 2 = 60/54 - Subtract the two like fractions:
15/54 - 60/54 = 15 - 60/54 = -45/54 - After reducing the fraction, the answer is -5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/54-30/27 15/54-60/27 15/54-30/54 45/54-30/27 15/54-90/27 15/54-30/81 75/54-30/27