Subtract 6/54 from 81/15
1st number: 5 6/15, 2nd number: 6/54
81/15 - 6/54 is 238/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
81/15 = 81 × 18/15 × 18 = 1458/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
6/54 = 6 × 5/54 × 5 = 30/270 - Subtract the two like fractions:
1458/270 - 30/270 = 1458 - 30/270 = 1428/270 - After reducing the fraction, the answer is 238/45
- In mixed form: 513/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/15-12/54 81/30-6/54 81/15-18/54 81/45-6/54 81/15-30/54 81/75-6/54 81/15-42/54