Subtract 8/12 from 81/10
1st number: 8 1/10, 2nd number: 8/12
81/10 - 8/12 is 223/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
81/10 = 81 × 6/10 × 6 = 486/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
8/12 = 8 × 5/12 × 5 = 40/60 - Subtract the two like fractions:
486/60 - 40/60 = 486 - 40/60 = 446/60 - After reducing the fraction, the answer is 223/30
- In mixed form: 713/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/10-16/12 81/20-8/12 81/10-8/24 81/10-24/12 81/30-8/12 81/10-8/36 81/10-40/12 81/50-8/12 81/10-8/60 81/10-56/12 81/70-8/12 81/10-8/84